3993990002 has 4 divisors (see below), whose sum is σ = 5990985006. Its totient is φ = 1996995000.

The previous prime is 3993989959. The next prime is 3993990029. The reversal of 3993990002 is 2000993993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2000993993 = 17 ⋅117705529.

It can be written as a sum of positive squares in only one way, i.e., 3972654841 + 21335161 = 63029^2 + 4619^2 .

It is a super-2 number, since 2×3993990002² = 31903912272151920008, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 998497499 + ... + 998497502.

Almost surely, 2^3993990002 is an apocalyptic number.

3993990002 is a deficient number, since it is larger than the sum of its proper divisors (1996995004).

3993990002 is a wasteful number, since it uses less digits than its factorization.

3993990002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1996995003.

The product of its (nonzero) digits is 118098, while the sum is 44.

The square root of 3993990002 is about 63198.0221367726. The cubic root of 3993990002 is about 1586.6056303659.

The spelling of 3993990002 in words is "three billion, nine hundred ninety-three million, nine hundred ninety thousand, two".