72055976 has 16 divisors (see below), whose sum is σ = 136346100. Its totient is φ = 35697024.

The previous prime is 72055957. The next prime is 72055993. The reversal of 72055976 is 67955027.

It can be written as a sum of positive squares in 2 ways, for example, as 70123876 + 1932100 = 8374^2 + 1390^2 .

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 3 ways as a sum of consecutive naturals, for example, 40445 + ... + 42188.

Almost surely, 2^72055976 is an apocalyptic number.

It is an amenable number.

72055976 is a deficient number, since it is larger than the sum of its proper divisors (64290124).

72055976 is a wasteful number, since it uses less digits than its factorization.

72055976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82748 (or 82744 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 72055976 is about 8488.5791508356. The cubic root of 72055976 is about 416.1245466578.

The spelling of 72055976 in words is "seventy-two million, fifty-five thousand, nine hundred seventy-six".