72176976 has 30 divisors (see below), whose sum is σ = 201995690. Its totient is φ = 24058944.

The previous prime is 72176971. The next prime is 72176977. The reversal of 72176976 is 67967127.

It can be written as a sum of positive squares in only one way, i.e., 57153600 + 15023376 = 7560^2 + 3876^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72176971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250471 + ... + 250758.

Almost surely, 2^72176976 is an apocalyptic number.

It is an amenable number.

72176976 is an abundant number, since it is smaller than the sum of its proper divisors (129818714).

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

72176976 is a wasteful number, since it uses less digits than its factorization.

72176976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501243 (or 501234 counting only the distinct ones).

The product of its digits is 222264, while the sum is 45.

The square root of 72176976 is about 8495.7033846527. The cubic root of 72176976 is about 416.3573421186.

The spelling of 72176976 in words is "seventy-two million, one hundred seventy-six thousand, nine hundred seventy-six".