722365 has 8 divisors (see below), whose sum is σ = 990720. Its totient is φ = 495312.

The previous prime is 722363. The next prime is 722369. The reversal of 722365 is 563227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 722365 - 2¹ = 722363 is a prime.

It is a super-2 number, since 2×722365² = 1043622386450, which contains 22 as substring.

722365 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722363) 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 7 ways as a sum of consecutive naturals, for example, 10285 + ... + 10354.

It is an arithmetic number, because the mean of its divisors is an integer number (123840).

2⁷²²³⁶⁵ is an apocalyptic number.

It is an amenable number.

722365 is a deficient number, since it is larger than the sum of its proper divisors (268355).

722365 is a wasteful number, since it uses less digits than its factorization.

722365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20651.

The product of its digits is 2520, while the sum is 25.

The square root of 722365 is about 849.9205845254. The cubic root of 722365 is about 89.7261221437.

The spelling of 722365 in words is "seven hundred twenty-two thousand, three hundred sixty-five".