722552 has 16 divisors (see below), whose sum is σ = 1365000. Its totient is φ = 358560.

The previous prime is 722539. The next prime is 722563. The reversal of 722552 is 255227.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 722552.

It is an unprimeable number.

722552 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 3 ways as a sum of consecutive naturals, for example, 1199 + ... + 1697.

2⁷²²⁵⁵² is an apocalyptic number.

It is an amenable number.

722552 is a deficient number, since it is larger than the sum of its proper divisors (642448).

722552 is a wasteful number, since it uses less digits than its factorization.

722552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686 (or 682 counting only the distinct ones).

The product of its digits is 1400, while the sum is 23.

The square root of 722552 is about 850.0305876849. The cubic root of 722552 is about 89.7338639996.

Adding to 722552 its reverse (255227), we get a palindrome (977779).

The spelling of 722552 in words is "seven hundred twenty-two thousand, five hundred fifty-two".