722936 has 16 divisors (see below), whose sum is σ = 1414800. Its totient is φ = 345664.

The previous prime is 722933. The next prime is 722963. The reversal of 722936 is 639227.

It is a junction number, because it is equal to n+sod(n) for n = 722899 and 722908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722933) 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, 1781 + ... + 2148.

It is an arithmetic number, because the mean of its divisors is an integer number (88425).

2⁷²²⁹³⁶ is an apocalyptic number.

It is an amenable number.

722936 is a deficient number, since it is larger than the sum of its proper divisors (691864).

722936 is a wasteful number, since it uses less digits than its factorization.

722936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3958 (or 3954 counting only the distinct ones).

The product of its digits is 4536, while the sum is 29.

The square root of 722936 is about 850.2564319075. The cubic root of 722936 is about 89.7497575276.

The spelling of 722936 in words is "seven hundred twenty-two thousand, nine hundred thirty-six".