722755 has 16 divisors (see below), whose sum is σ = 1003104. Its totient is φ = 494080.

The previous prime is 722749. The next prime is 722783. The reversal of 722755 is 557227.

It is not a de Polignac number, because 722755 - 2⁵ = 722723 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 549 + ... + 1321.

It is an arithmetic number, because the mean of its divisors is an integer number (62694).

2⁷²²⁷⁵⁵ is an apocalyptic number.

722755 is a deficient number, since it is larger than the sum of its proper divisors (280349).

722755 is a wasteful number, since it uses less digits than its factorization.

722755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806.

The product of its digits is 4900, while the sum is 28.

The square root of 722755 is about 850.1499867670. The cubic root of 722755 is about 89.7422667483.

The spelling of 722755 in words is "seven hundred twenty-two thousand, seven hundred fifty-five".