72098559 has 48 divisors (see below), whose sum is σ = 121615200. Its totient is φ = 41959296.

The previous prime is 72098539. The next prime is 72098563. The reversal of 72098559 is 95589027.

It is a happy number.

72098559 is a `hidden beast` number, since 7 + 2 + 0 + 98 + 559 = 666.

It is not a de Polignac number, because 72098559 - 2⁵ = 72098527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72098519) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126427 + ... + 126995.

It is an arithmetic number, because the mean of its divisors is an integer number (2533650).

Almost surely, 2^72098559 is an apocalyptic number.

72098559 is a deficient number, since it is larger than the sum of its proper divisors (49516641).

72098559 is a wasteful number, since it uses less digits than its factorization.

72098559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 72098559 is about 8491.0870328834. The cubic root of 72098559 is about 416.2065030435.

The spelling of 72098559 in words is "seventy-two million, ninety-eight thousand, five hundred fifty-nine".