722684 has 24 divisors (see below), whose sum is σ = 1372560. Its totient is φ = 331776.

The previous prime is 722669. The next prime is 722713. The reversal of 722684 is 486227.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2684 + ... + 2940.

It is an arithmetic number, because the mean of its divisors is an integer number (57190).

2⁷²²⁶⁸⁴ is an apocalyptic number.

722684 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

722684 is a deficient number, since it is larger than the sum of its proper divisors (649876).

722684 is a wasteful number, since it uses less digits than its factorization.

722684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 315 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 722684 is about 850.1082284039. The cubic root of 722684 is about 89.7393280348.

The spelling of 722684 in words is "seven hundred twenty-two thousand, six hundred eighty-four".