78924120 has 64 divisors (see below), whose sum is σ = 258301440. Its totient is φ = 19132800.

The previous prime is 78924113. The next prime is 78924133. The reversal of 78924120 is 2142987.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28576 + ... + 31215.

It is an arithmetic number, because the mean of its divisors is an integer number (4035960).

Almost surely, 2^78924120 is an apocalyptic number.

It is an amenable number.

78924120 is an abundant number, since it is smaller than the sum of its proper divisors (179377320).

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

78924120 is a wasteful number, since it uses less digits than its factorization.

78924120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59816 (or 59812 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 78924120 is about 8883.9248083266. The cubic root of 78924120 is about 428.9466193817.

The spelling of 78924120 in words is "seventy-eight million, nine hundred twenty-four thousand, one hundred twenty".