721675376 has 10 divisors (see below), whose sum is σ = 1398246072. Its totient is φ = 360837680.

The previous prime is 721675373. The next prime is 721675397. The reversal of 721675376 is 673576127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (721675373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22552340 + ... + 22552371.

Almost surely, 2^721675376 is an apocalyptic number.

It is an amenable number.

721675376 is a deficient number, since it is larger than the sum of its proper divisors (676570696).

721675376 is a wasteful number, since it uses less digits than its factorization.

721675376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45104719 (or 45104713 counting only the distinct ones).

The product of its digits is 370440, while the sum is 44.

The square root of 721675376 is about 26864.0163787919. The cubic root of 721675376 is about 896.9755994932.

The spelling of 721675376 in words is "seven hundred twenty-one million, six hundred seventy-five thousand, three hundred seventy-six".