721675452 has 24 divisors (see below), whose sum is σ = 1686246016. Its totient is φ = 240224688.

The previous prime is 721675447. The next prime is 721675477. The reversal of 721675452 is 254576127.

721675452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 721675452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32638 + ... + 50085.

Almost surely, 2^721675452 is an apocalyptic number.

It is an amenable number.

721675452 is an abundant number, since it is smaller than the sum of its proper divisors (964570564).

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

721675452 is a wasteful number, since it uses less digits than its factorization.

721675452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83457 (or 83455 counting only the distinct ones).

The product of its digits is 117600, while the sum is 39.

The square root of 721675452 is about 26864.0177933235. The cubic root of 721675452 is about 896.9756309802.

The spelling of 721675452 in words is "seven hundred twenty-one million, six hundred seventy-five thousand, four hundred fifty-two".