72577132 has 12 divisors (see below), whose sum is σ = 127378440. Its totient is φ = 36183296.

The previous prime is 72577117. The next prime is 72577157. The reversal of 72577132 is 23177527.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24757 + ... + 27532.

It is an arithmetic number, because the mean of its divisors is an integer number (10614870).

Almost surely, 2^72577132 is an apocalyptic number.

It is an amenable number.

72577132 is a deficient number, since it is larger than the sum of its proper divisors (54801308).

72577132 is a wasteful number, since it uses less digits than its factorization.

72577132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52640 (or 52638 counting only the distinct ones).

The product of its digits is 20580, while the sum is 34.

The square root of 72577132 is about 8519.2213259194. The cubic root of 72577132 is about 417.1253660602.

The spelling of 72577132 in words is "seventy-two million, five hundred seventy-seven thousand, one hundred thirty-two".