720213604 has 12 divisors (see below), whose sum is σ = 1374953328. Its totient is φ = 327369800.

The previous prime is 720213583. The next prime is 720213629. The reversal of 720213604 is 406312027.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8184202 + ... + 8184289.

It is an arithmetic number, because the mean of its divisors is an integer number (114579444).

Almost surely, 2^720213604 is an apocalyptic number.

It is an amenable number.

720213604 is a deficient number, since it is larger than the sum of its proper divisors (654739724).

720213604 is a wasteful number, since it uses less digits than its factorization.

720213604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16368506 (or 16368504 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 720213604 is about 26836.7957103675. The cubic root of 720213604 is about 896.3695744348.

It can be divided in two parts, 72021 and 3604, that added together give a square (75625 = 275²).

The spelling of 720213604 in words is "seven hundred twenty million, two hundred thirteen thousand, six hundred four".