76328172 has 18 divisors (see below), whose sum is σ = 192940748. Its totient is φ = 25442712.

The previous prime is 76328167. The next prime is 76328201. The reversal of 76328172 is 27182367.

76328172 is a `hidden beast` number, since 7 + 632 + 8 + 17 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×76328172³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2120227 = 76328172 / (7 + 6 + 3 + 2 + 8 + 1 + 7 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1060078 + ... + 1060149.

Almost surely, 2^76328172 is an apocalyptic number.

It is an amenable number.

76328172 is an abundant number, since it is smaller than the sum of its proper divisors (116612576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76328172 is a wasteful number, since it uses less digits than its factorization.

76328172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120237 (or 2120232 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 76328172 is about 8736.5995673374. The cubic root of 76328172 is about 424.1911666151.

The spelling of 76328172 in words is "seventy-six million, three hundred twenty-eight thousand, one hundred seventy-two".