78927912 has 64 divisors (see below), whose sum is σ = 250569600. Its totient is φ = 22550400.

The previous prime is 78927907. The next prime is 78927913. The reversal of 78927912 is 21972987.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78927913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24589 + ... + 27612.

It is an arithmetic number, because the mean of its divisors is an integer number (3915150).

Almost surely, 2^78927912 is an apocalyptic number.

78927912 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

78927912 is an abundant number, since it is smaller than the sum of its proper divisors (171641688).

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

78927912 is a wasteful number, since it uses less digits than its factorization.

78927912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52223 (or 52213 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 78927912 is about 8884.1382249490. The cubic root of 78927912 is about 428.9534890160.

The spelling of 78927912 in words is "seventy-eight million, nine hundred twenty-seven thousand, nine hundred twelve".