78867372 has 12 divisors (see below), whose sum is σ = 184023896. Its totient is φ = 26289120.

The previous prime is 78867361. The next prime is 78867377. The reversal of 78867372 is 27376887.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (78867377) 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, 3286129 + ... + 3286152.

Almost surely, 2^78867372 is an apocalyptic number.

It is an amenable number.

78867372 is an abundant number, since it is smaller than the sum of its proper divisors (105156524).

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

78867372 is a wasteful number, since it uses less digits than its factorization.

78867372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6572288 (or 6572286 counting only the distinct ones).

The product of its digits is 790272, while the sum is 48.

The square root of 78867372 is about 8880.7303753689. The cubic root of 78867372 is about 428.8437877032.

The spelling of 78867372 in words is "seventy-eight million, eight hundred sixty-seven thousand, three hundred seventy-two".