79980275 has 12 divisors (see below), whose sum is σ = 99300192. Its totient is φ = 63903840.

The previous prime is 79980193. The next prime is 79980319. The reversal of 79980275 is 57208997.

79980275 = T₂₅₁₇ + T₂₅₁₈ + ... + T₂₅₄₁.

It is not a de Polignac number, because 79980275 - 2¹² = 79976179 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25862 + ... + 28788.

It is an arithmetic number, because the mean of its divisors is an integer number (8275016).

Almost surely, 2^79980275 is an apocalyptic number.

79980275 is a deficient number, since it is larger than the sum of its proper divisors (19319917).

79980275 is a wasteful number, since it uses less digits than its factorization.

79980275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4030 (or 4025 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 47.

The square root of 79980275 is about 8943.1691810007. The cubic root of 79980275 is about 430.8515215752.

The spelling of 79980275 in words is "seventy-nine million, nine hundred eighty thousand, two hundred seventy-five".