78625107 has 16 divisors (see below), whose sum is σ = 127071360. Its totient is φ = 47651400.

The previous prime is 78625087. The next prime is 78625123. The reversal of 78625107 is 70152687.

It is not a de Polignac number, because 78625107 - 2⁸ = 78624851 is a prime.

It is a super-2 number, since 2×78625107² = 12363814901522898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78625147) 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, 132069 + ... + 132662.

It is an arithmetic number, because the mean of its divisors is an integer number (7941960).

Almost surely, 2^78625107 is an apocalyptic number.

78625107 is a deficient number, since it is larger than the sum of its proper divisors (48446253).

78625107 is a wasteful number, since it uses less digits than its factorization.

78625107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264751 (or 264745 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 78625107 is about 8867.0799590395. The cubic root of 78625107 is about 428.4042294932.

The spelling of 78625107 in words is "seventy-eight million, six hundred twenty-five thousand, one hundred seven".