720553874 has 24 divisors (see below), whose sum is σ = 1158783780. Its totient is φ = 335943936.

The previous prime is 720553849. The next prime is 720553901. The reversal of 720553874 is 478355027.

It can be written as a sum of positive squares in 6 ways, for example, as 559086025 + 161467849 = 23645^2 + 12707^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57284 + ... + 68720.

Almost surely, 2^720553874 is an apocalyptic number.

720553874 is a deficient number, since it is larger than the sum of its proper divisors (438229906).

720553874 is a wasteful number, since it uses less digits than its factorization.

720553874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11582 (or 11565 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 41.

The square root of 720553874 is about 26843.1345785100. The cubic root of 720553874 is about 896.5107175862.

The spelling of 720553874 in words is "seven hundred twenty million, five hundred fifty-three thousand, eight hundred seventy-four".