720872998 has 16 divisors (see below), whose sum is σ = 1175861664. Its totient is φ = 330065280.

The previous prime is 720872989. The next prime is 720873007. The reversal of 720872998 is 899278027.

It is an interprime number because it is at equal distance from previous prime (720872989) and next prime (720873007).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285258 + ... + 287773.

It is an arithmetic number, because the mean of its divisors is an integer number (73491354).

Almost surely, 2^720872998 is an apocalyptic number.

720872998 is a deficient number, since it is larger than the sum of its proper divisors (454988666).

720872998 is a wasteful number, since it uses less digits than its factorization.

720872998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573087.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 720872998 is about 26849.0781592218. The cubic root of 720872998 is about 896.6430490563.

The spelling of 720872998 in words is "seven hundred twenty million, eight hundred seventy-two thousand, nine hundred ninety-eight".