72877132 has 6 divisors (see below), whose sum is σ = 127534988. Its totient is φ = 36438564.

The previous prime is 72877109. The next prime is 72877139. The reversal of 72877132 is 23177827.

It is a super-2 number, since 2×72877132² = 10622152737090848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72877091 and 72877100.

It is not an unprimeable number, because it can be changed into a prime (72877139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9109638 + ... + 9109645.

Almost surely, 2^72877132 is an apocalyptic number.

It is an amenable number.

72877132 is a deficient number, since it is larger than the sum of its proper divisors (54657856).

72877132 is a wasteful number, since it uses less digits than its factorization.

72877132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18219287 (or 18219285 counting only the distinct ones).

The product of its digits is 32928, while the sum is 37.

The square root of 72877132 is about 8536.8104113890. The cubic root of 72877132 is about 417.6993098588.

The spelling of 72877132 in words is "seventy-two million, eight hundred seventy-seven thousand, one hundred thirty-two".