78115104 has 60 divisors (see below), whose sum is σ = 229741974. Its totient is φ = 26037504.

The previous prime is 78115091. The next prime is 78115111. The reversal of 78115104 is 40151187.

It can be written as a sum of positive squares in only one way, i.e., 76527504 + 1587600 = 8748^2 + 1260^2 .

It is a super-2 number, since 2×78115104² = 12203938945861632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12477 + ... + 17660.

Almost surely, 2^78115104 is an apocalyptic number.

It is an amenable number.

78115104 is an abundant number, since it is smaller than the sum of its proper divisors (151626870).

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

78115104 is a wasteful number, since it uses less digits than its factorization.

78115104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30159 (or 30142 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 78115104 is about 8838.2749448068. The cubic root of 78115104 is about 427.4759358569.

The spelling of 78115104 in words is "seventy-eight million, one hundred fifteen thousand, one hundred four".