72776632 has 32 divisors (see below), whose sum is σ = 142819200. Its totient is φ = 34729344.

The previous prime is 72776611. The next prime is 72776651. The reversal of 72776632 is 23667727.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13369 + ... + 18007.

It is an arithmetic number, because the mean of its divisors is an integer number (4463100).

Almost surely, 2^72776632 is an apocalyptic number.

It is an amenable number.

72776632 is a deficient number, since it is larger than the sum of its proper divisors (70042568).

72776632 is a wasteful number, since it uses less digits than its factorization.

72776632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4735 (or 4731 counting only the distinct ones).

The product of its digits is 148176, while the sum is 40.

The square root of 72776632 is about 8530.9221072519. The cubic root of 72776632 is about 417.5072144283.

The spelling of 72776632 in words is "seventy-two million, seven hundred seventy-six thousand, six hundred thirty-two".