722570 has 16 divisors (see below), whose sum is σ = 1369440. Its totient is φ = 273744.

The previous prime is 722563. The next prime is 722581. The reversal of 722570 is 75227.

It is an unprimeable number.

722570 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1712 + ... + 2091.

It is an arithmetic number, because the mean of its divisors is an integer number (85590).

2⁷²²⁵⁷⁰ is an apocalyptic number.

722570 is a deficient number, since it is larger than the sum of its proper divisors (646870).

722570 is a wasteful number, since it uses less digits than its factorization.

722570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3829.

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 722570 is about 850.0411754733. The cubic root of 722570 is about 89.7346091345.

Adding to 722570 its reverse (75227), we get a palindrome (797797).

The spelling of 722570 in words is "seven hundred twenty-two thousand, five hundred seventy".