78075 has 18 divisors (see below), whose sum is σ = 140244. Its totient is φ = 41520.

The previous prime is 78059. The next prime is 78079. The reversal of 78075 is 57087.

It is not a de Polignac number, because 78075 - 2⁴ = 78059 is a prime.

It is a nialpdrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (78079) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 52 + ... + 398.

2⁷⁸⁰⁷⁵ is an apocalyptic number.

78075 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

78075 is a deficient number, since it is larger than the sum of its proper divisors (62169).

78075 is a wasteful number, since it uses less digits than its factorization.

78075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 78075 is about 279.4190401530. The cubic root of 78075 is about 42.7402768489.

The spelling of 78075 in words is "seventy-eight thousand, seventy-five".