3992998507 has 4 divisors (see below), whose sum is σ = 3994327656. Its totient is φ = 3991669360.

The previous prime is 3992998483. The next prime is 3992998511. The reversal of 3992998507 is 7058992993.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3992998507 - 2⁷ = 3992998379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3992998517) 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, 660058 + ... + 666079.

It is an arithmetic number, because the mean of its divisors is an integer number (998581914).

Almost surely, 2^3992998507 is an apocalyptic number.

3992998507 is a deficient number, since it is larger than the sum of its proper divisors (1329149).

3992998507 is a wasteful number, since it uses less digits than its factorization.

3992998507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329148.

The product of its (nonzero) digits is 11022480, while the sum is 61.

The square root of 3992998507 is about 63190.1772983745. The cubic root of 3992998507 is about 1586.4743296082.

The spelling of 3992998507 in words is "three billion, nine hundred ninety-two million, nine hundred ninety-eight thousand, five hundred seven".