7928923904 has 36 divisors (see below), whose sum is σ = 17265688440. Its totient is φ = 3604055040.

The previous prime is 7928923903. The next prime is 7928923907. The reversal of 7928923904 is 4093298297.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7928923903) 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, 1405019 + ... + 1410650.

Almost surely, 2^7928923904 is an apocalyptic number.

It is an amenable number.

7928923904 is an abundant number, since it is smaller than the sum of its proper divisors (9336764536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7928923904 is a wasteful number, since it uses less digits than its factorization.

7928923904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2815696 (or 2815682 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 53.

The square root of 7928923904 is about 89044.5051870131. The cubic root of 7928923904 is about 1994.0593638923.

The spelling of 7928923904 in words is "seven billion, nine hundred twenty-eight million, nine hundred twenty-three thousand, nine hundred four".