76728275 has 12 divisors (see below), whose sum is σ = 102462192. Its totient is φ = 56660640.

The previous prime is 76728257. The next prime is 76728277. The reversal of 76728275 is 57282767.

It is a happy number.

It is not a de Polignac number, because 76728275 - 2¹⁰ = 76727251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76728277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117719 + ... + 118368.

It is an arithmetic number, because the mean of its divisors is an integer number (8538516).

Almost surely, 2^76728275 is an apocalyptic number.

76728275 is a deficient number, since it is larger than the sum of its proper divisors (25733917).

76728275 is a wasteful number, since it uses less digits than its factorization.

76728275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236110 (or 236105 counting only the distinct ones).

The product of its digits is 329280, while the sum is 44.

The square root of 76728275 is about 8759.4677349711. The cubic root of 76728275 is about 424.9310614826.

The spelling of 76728275 in words is "seventy-six million, seven hundred twenty-eight thousand, two hundred seventy-five".