72732998 has 16 divisors (see below), whose sum is σ = 117927600. Its totient is φ = 33444576.

The previous prime is 72732997. The next prime is 72733043. The reversal of 72732998 is 89923727.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72732997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2153 + ... + 12251.

It is an arithmetic number, because the mean of its divisors is an integer number (7370475).

Almost surely, 2^72732998 is an apocalyptic number.

72732998 is a deficient number, since it is larger than the sum of its proper divisors (45194602).

72732998 is a wasteful number, since it uses less digits than its factorization.

72732998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10391.

The product of its digits is 381024, while the sum is 47.

The square root of 72732998 is about 8528.3643214863. The cubic root of 72732998 is about 417.4237574571.

The spelling of 72732998 in words is "seventy-two million, seven hundred thirty-two thousand, nine hundred ninety-eight".