72998000 has 160 divisors (see below), whose sum is σ = 198469440. Its totient is φ = 25804800.

The previous prime is 72997997. The next prime is 72998059. The reversal of 72998000 is 89927.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 645944 + ... + 646056.

It is an arithmetic number, because the mean of its divisors is an integer number (1240434).

Almost surely, 2^72998000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72998000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99234720).

72998000 is an abundant number, since it is smaller than the sum of its proper divisors (125471440).

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

72998000 is a wasteful number, since it uses less digits than its factorization.

72998000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 72998000 is about 8543.8867033687. The cubic root of 72998000 is about 417.9301028551.

The spelling of 72998000 in words is "seventy-two million, nine hundred ninety-eight thousand".