78875 has 8 divisors (see below), whose sum is σ = 98592. Its totient is φ = 63000.

The previous prime is 78857. The next prime is 78877. The reversal of 78875 is 57887.

78875 = 23³ + 24³ + ... + 27³.

It is not a de Polignac number, because 78875 - 2¹² = 74779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191 + ... + 440.

It is an arithmetic number, because the mean of its divisors is an integer number (12324).

2⁷⁸⁸⁷⁵ is an apocalyptic number.

78875 is a deficient number, since it is larger than the sum of its proper divisors (19717).

78875 is an equidigital number, since it uses as much as digits as its factorization.

78875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 636 counting only the distinct ones).

The product of its digits is 15680, while the sum is 35.

The square root of 78875 is about 280.8469333997. The cubic root of 78875 is about 42.8857613087.

The spelling of 78875 in words is "seventy-eight thousand, eight hundred seventy-five".