3999812924 has 24 divisors (see below), whose sum is σ = 7191639840. Its totient is φ = 1945100736.

The previous prime is 3999812923. The next prime is 3999812959. The reversal of 3999812924 is 4292189993.

It is a self number, because there is not a number n which added to its sum of digits gives 3999812924.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3999812923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677417 + ... + 683295.

It is an arithmetic number, because the mean of its divisors is an integer number (299651660).

Almost surely, 2^3999812924 is an apocalyptic number.

It is an amenable number.

3999812924 is a deficient number, since it is larger than the sum of its proper divisors (3191826916).

3999812924 is a wasteful number, since it uses less digits than its factorization.

3999812924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10517 (or 10515 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 56.

The square root of 3999812924 is about 63244.0742204359. The cubic root of 3999812924 is about 1587.3763045291.

The spelling of 3999812924 in words is "three billion, nine hundred ninety-nine million, eight hundred twelve thousand, nine hundred twenty-four".