72797700 has 36 divisors (see below), whose sum is σ = 210628880. Its totient is φ = 19412640.

The previous prime is 72797693. The next prime is 72797707. The reversal of 72797700 is 779727.

It is an interprime number because it is at equal distance from previous prime (72797693) and next prime (72797707).

It is not an unprimeable number, because it can be changed into a prime (72797707) 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 11 ways as a sum of consecutive naturals, for example, 121030 + ... + 121629.

Almost surely, 2^72797700 is an apocalyptic number.

It is an amenable number.

72797700 is an abundant number, since it is smaller than the sum of its proper divisors (137831180).

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

72797700 is a wasteful number, since it uses less digits than its factorization.

72797700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242676 (or 242669 counting only the distinct ones).

The product of its (nonzero) digits is 43218, while the sum is 39.

The square root of 72797700 is about 8532.1568199371. The cubic root of 72797700 is about 417.5474983908.

The spelling of 72797700 in words is "seventy-two million, seven hundred ninety-seven thousand, seven hundred".