72761188 has 12 divisors (see below), whose sum is σ = 127400112. Its totient is φ = 36361160.

The previous prime is 72761159. The next prime is 72761189. The reversal of 72761188 is 88116727.

It is a self number, because there is not a number n which added to its sum of digits gives 72761188.

It is not an unprimeable number, because it can be changed into a prime (72761189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6531 + ... + 13717.

It is an arithmetic number, because the mean of its divisors is an integer number (10616676).

Almost surely, 2^72761188 is an apocalyptic number.

It is an amenable number.

72761188 is a deficient number, since it is larger than the sum of its proper divisors (54638924).

72761188 is a wasteful number, since it uses less digits than its factorization.

72761188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9722 (or 9720 counting only the distinct ones).

The product of its digits is 37632, while the sum is 40.

The square root of 72761188 is about 8530.0168815777. The cubic root of 72761188 is about 417.4776791346.

It can be divided in two parts, 7276 and 1188, that added together give a square (8464 = 92²).

The spelling of 72761188 in words is "seventy-two million, seven hundred sixty-one thousand, one hundred eighty-eight".