72604998 has 24 divisors (see below), whose sum is σ = 163138248. Its totient is φ = 24201504.

The previous prime is 72604991. The next prime is 72605017. The reversal of 72604998 is 89940627.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72604991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74211 + ... + 75182.

It is an arithmetic number, because the mean of its divisors is an integer number (6797427).

Almost surely, 2^72604998 is an apocalyptic number.

72604998 is an abundant number, since it is smaller than the sum of its proper divisors (90533250).

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

72604998 is a wasteful number, since it uses less digits than its factorization.

72604998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149410 (or 149398 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 72604998 is about 8520.8566470749. The cubic root of 72604998 is about 417.1787443434.

The spelling of 72604998 in words is "seventy-two million, six hundred four thousand, nine hundred ninety-eight".