722908 has 12 divisors (see below), whose sum is σ = 1339632. Its totient is φ = 340160.

The previous prime is 722903. The next prime is 722921. The reversal of 722908 is 809227.

It is a super-3 number, since 3×722908³ = 1133366436460911936, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722903) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5248 + ... + 5383.

It is an arithmetic number, because the mean of its divisors is an integer number (111636).

2⁷²²⁹⁰⁸ is an apocalyptic number.

It is an amenable number.

722908 is a deficient number, since it is larger than the sum of its proper divisors (616724).

722908 is a wasteful number, since it uses less digits than its factorization.

722908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10652 (or 10650 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 722908 is about 850.2399661272. The cubic root of 722908 is about 89.7485988148.

The spelling of 722908 in words is "seven hundred twenty-two thousand, nine hundred eight".