721364470 has 8 divisors (see below), whose sum is σ = 1298456064. Its totient is φ = 288545784.

The previous prime is 721364447. The next prime is 721364477. The reversal of 721364470 is 74463127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (721364477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36068214 + ... + 36068233.

It is an arithmetic number, because the mean of its divisors is an integer number (162307008).

Almost surely, 2^721364470 is an apocalyptic number.

721364470 is a deficient number, since it is larger than the sum of its proper divisors (577091594).

721364470 is a wasteful number, since it uses less digits than its factorization.

721364470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72136454.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 721364470 is about 26858.2290927753. The cubic root of 721364470 is about 896.8467718780.

The spelling of 721364470 in words is "seven hundred twenty-one million, three hundred sixty-four thousand, four hundred seventy".