78660113 has 32 divisors (see below), whose sum is σ = 97241088. Its totient is φ = 62208000.

The previous prime is 78660089. The next prime is 78660149. The reversal of 78660113 is 31106687.

It is a cyclic number.

It is not a de Polignac number, because 78660113 - 2¹⁰ = 78659089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78660113.

It is not an unprimeable number, because it can be changed into a prime (78663113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 778763 + ... + 778863.

It is an arithmetic number, because the mean of its divisors is an integer number (3038784).

Almost surely, 2^78660113 is an apocalyptic number.

It is an amenable number.

78660113 is a deficient number, since it is larger than the sum of its proper divisors (18580975).

78660113 is a wasteful number, since it uses less digits than its factorization.

78660113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 78660113 is about 8869.0536699244. The cubic root of 78660113 is about 428.4677990659.

The spelling of 78660113 in words is "seventy-eight million, six hundred sixty thousand, one hundred thirteen".