78230924 has 12 divisors (see below), whose sum is σ = 138832848. Its totient is φ = 38564400.

The previous prime is 78230921. The next prime is 78230939. The reversal of 78230924 is 42903287.

It is a super-2 number, since 2×78230924² = 12240154939787552, which contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (78230921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137447 + ... + 138014.

It is an arithmetic number, because the mean of its divisors is an integer number (11569404).

Almost surely, 2^78230924 is an apocalyptic number.

It is an amenable number.

78230924 is a deficient number, since it is larger than the sum of its proper divisors (60601924).

78230924 is a wasteful number, since it uses less digits than its factorization.

78230924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275536 (or 275534 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 78230924 is about 8844.8247014850. The cubic root of 78230924 is about 427.6871020767.

The spelling of 78230924 in words is "seventy-eight million, two hundred thirty thousand, nine hundred twenty-four".