79128275 has 12 divisors (see below), whose sum is σ = 101285184. Its totient is φ = 61260000.

The previous prime is 79128241. The next prime is 79128281. The reversal of 79128275 is 57282197.

It is not a de Polignac number, because 79128275 - 2²⁶ = 12019411 is a prime.

It is a super-3 number, since 3×79128275³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 50276 + ... + 51825.

It is an arithmetic number, because the mean of its divisors is an integer number (8440432).

Almost surely, 2^79128275 is an apocalyptic number.

79128275 is a deficient number, since it is larger than the sum of its proper divisors (22156909).

79128275 is a wasteful number, since it uses less digits than its factorization.

79128275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102142 (or 102137 counting only the distinct ones).

The product of its digits is 70560, while the sum is 41.

The square root of 79128275 is about 8895.4075229862. The cubic root of 79128275 is about 429.3161565925.

The spelling of 79128275 in words is "seventy-nine million, one hundred twenty-eight thousand, two hundred seventy-five".