722770 has 8 divisors (see below), whose sum is σ = 1301004. Its totient is φ = 289104.

The previous prime is 722749. The next prime is 722783. The reversal of 722770 is 77227.

It can be written as a sum of positive squares in 2 ways, for example, as 700569 + 22201 = 837^2 + 149^2 .

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 722770.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36129 + ... + 36148.

2⁷²²⁷⁷⁰ is an apocalyptic number.

722770 is a deficient number, since it is larger than the sum of its proper divisors (578234).

722770 is a wasteful number, since it uses less digits than its factorization.

722770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72284.

The product of its (nonzero) digits is 1372, while the sum is 25.

The square root of 722770 is about 850.1588086940. The cubic root of 722770 is about 89.7428875787.

Adding to 722770 its reverse (77227), we get a palindrome (799997).

The spelling of 722770 in words is "seven hundred twenty-two thousand, seven hundred seventy", and thus it is an iban number.