78193164 has 48 divisors (see below), whose sum is σ = 215712000. Its totient is φ = 21569856.

The previous prime is 78193163. The next prime is 78193177. The reversal of 78193164 is 46139187.

It is a super-2 number, since 2×78193164² = 12228341792661792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78193163) 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, 13614 + ... + 18485.

It is an arithmetic number, because the mean of its divisors is an integer number (4494000).

Almost surely, 2^78193164 is an apocalyptic number.

It is an amenable number.

78193164 is an abundant number, since it is smaller than the sum of its proper divisors (137518836).

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

78193164 is a wasteful number, since it uses less digits than its factorization.

78193164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32142 (or 32140 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 78193164 is about 8842.6898622535. The cubic root of 78193164 is about 427.6182799147.

The spelling of 78193164 in words is "seventy-eight million, one hundred ninety-three thousand, one hundred sixty-four".