72880998 has 16 divisors (see below), whose sum is σ = 153433920. Its totient is φ = 23015016.

The previous prime is 72880987. The next prime is 72880999. The reversal of 72880998 is 89908827.

It is a self number, because there is not a number n which added to its sum of digits gives 72880998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72880999) 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 7 ways as a sum of consecutive naturals, for example, 319540 + ... + 319767.

It is an arithmetic number, because the mean of its divisors is an integer number (9589620).

Almost surely, 2^72880998 is an apocalyptic number.

72880998 is an abundant number, since it is smaller than the sum of its proper divisors (80552922).

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

72880998 is a wasteful number, since it uses less digits than its factorization.

72880998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639331.

The product of its (nonzero) digits is 580608, while the sum is 51.

The square root of 72880998 is about 8537.0368395597. The cubic root of 72880998 is about 417.7066957925.

The spelling of 72880998 in words is "seventy-two million, eight hundred eighty thousand, nine hundred ninety-eight".