722704916 has 12 divisors (see below), whose sum is σ = 1267445088. Its totient is φ = 360577752.

The previous prime is 722704907. The next prime is 722704921. The reversal of 722704916 is 619407227.

It is a super-2 number, since 2×722704916² = 1044604791221134112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 722704916.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 191576 + ... + 195311.

It is an arithmetic number, because the mean of its divisors is an integer number (105620424).

Almost surely, 2^722704916 is an apocalyptic number.

It is an amenable number.

722704916 is a deficient number, since it is larger than the sum of its proper divisors (544740172).

722704916 is a wasteful number, since it uses less digits than its factorization.

722704916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387358 (or 387356 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 722704916 is about 26883.1716134834. The cubic root of 722704916 is about 897.4019377500.

The spelling of 722704916 in words is "seven hundred twenty-two million, seven hundred four thousand, nine hundred sixteen".