3993990001 has 4 divisors (see below), whose sum is σ = 3996492532. Its totient is φ = 3991487472.

The previous prime is 3993989959. The next prime is 3993990029. The reversal of 3993990001 is 1000993993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1000993993 = 13859 ⋅72227.

It can be written as a sum of positive squares in 2 ways, for example, as 1067720976 + 2926269025 = 32676^2 + 54095^2 .

It is a cyclic number.

It is not a de Polignac number, because 3993990001 - 2¹¹ = 3993987953 is a prime.

It is a super-2 number, since 2×3993990001² = 31903912256175960002, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 3993990001 parts by 89375 straight cuts.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3993990001.

It is not an unprimeable number, because it can be changed into a prime (3993990101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1248870 + ... + 1252063.

It is an arithmetic number, because the mean of its divisors is an integer number (999123133).

Almost surely, 2^3993990001 is an apocalyptic number.

It is an amenable number.

3993990001 is a deficient number, since it is larger than the sum of its proper divisors (2502531).

3993990001 is a wasteful number, since it uses less digits than its factorization.

3993990001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502530.

The product of its (nonzero) digits is 59049, while the sum is 43.

The square root of 3993990001 is about 63198.0221288610. The cubic root of 3993990001 is about 1586.6056302335.

The spelling of 3993990001 in words is "three billion, nine hundred ninety-three million, nine hundred ninety thousand, one".