3992020001 has 4 divisors (see below), whose sum is σ = 4165586112. Its totient is φ = 3818453892.

The previous prime is 3992019961. The next prime is 3992020007. The reversal of 3992020001 is 1000202993.

3992020001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3992020001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3992020007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86783021 + ... + 86783066.

It is an arithmetic number, because the mean of its divisors is an integer number (1041396528).

Almost surely, 2^3992020001 is an apocalyptic number.

It is an amenable number.

3992020001 is a deficient number, since it is larger than the sum of its proper divisors (173566111).

3992020001 is a wasteful number, since it uses less digits than its factorization.

3992020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173566110.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 3992020001 is about 63182.4342756751. The cubic root of 3992020001 is about 1586.3447276336.

Adding to 3992020001 its reverse (1000202993), we get a palindrome (4992222994).

The spelling of 3992020001 in words is "three billion, nine hundred ninety-two million, twenty thousand, one".