720564798 has 16 divisors (see below), whose sum is σ = 1490824080. Its totient is φ = 231905856.

The previous prime is 720564787. The next prime is 720564799. The reversal of 720564798 is 897465027.

It is a super-3 number, since 3×720564798³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720564799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2070415 + ... + 2070762.

It is an arithmetic number, because the mean of its divisors is an integer number (93176505).

Almost surely, 2^720564798 is an apocalyptic number.

720564798 is an abundant number, since it is smaller than the sum of its proper divisors (770259282).

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

720564798 is a wasteful number, since it uses less digits than its factorization.

720564798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4141211.

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 720564798 is about 26843.3380562105. The cubic root of 720564798 is about 896.5152480981.

The spelling of 720564798 in words is "seven hundred twenty million, five hundred sixty-four thousand, seven hundred ninety-eight".