722634 has 16 divisors (see below), whose sum is σ = 1576800. Its totient is φ = 218960.

The previous prime is 722633. The next prime is 722639. The reversal of 722634 is 436227.

It is not an unprimeable number, because it can be changed into a prime (722633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5409 + ... + 5540.

It is an arithmetic number, because the mean of its divisors is an integer number (98550).

2⁷²²⁶³⁴ is an apocalyptic number.

722634 is an abundant number, since it is smaller than the sum of its proper divisors (854166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

722634 is a wasteful number, since it uses less digits than its factorization.

722634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10965.

The product of its digits is 2016, while the sum is 24.

The square root of 722634 is about 850.0788198750. The cubic root of 722634 is about 89.7372584028.

It can be divided in two parts, 7226 and 34, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 722634 in words is "seven hundred twenty-two thousand, six hundred thirty-four".