78960918 has 16 divisors (see below), whose sum is σ = 158324400. Its totient is φ = 26253216.

The previous prime is 78960913. The next prime is 78960919. The reversal of 78960918 is 81906987.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78960913) 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 7 ways as a sum of consecutive naturals, for example, 14193 + ... + 18956.

It is an arithmetic number, because the mean of its divisors is an integer number (9895275).

Almost surely, 2^78960918 is an apocalyptic number.

78960918 is an abundant number, since it is smaller than the sum of its proper divisors (79363482).

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

78960918 is a wasteful number, since it uses less digits than its factorization.

78960918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33551.

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 78960918 is about 8885.9956110725. The cubic root of 78960918 is about 429.0132738054.

The spelling of 78960918 in words is "seventy-eight million, nine hundred sixty thousand, nine hundred eighteen".