660572 has 12 divisors (see below), whose sum is σ = 1261176. Its totient is φ = 300240.

The previous prime is 660563. The next prime is 660589. The reversal of 660572 is 275066.

It is a congruent number.

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, 7463 + ... + 7550.

It is an arithmetic number, because the mean of its divisors is an integer number (105098).

2⁶⁶⁰⁵⁷² is an apocalyptic number.

It is an amenable number.

660572 is a deficient number, since it is larger than the sum of its proper divisors (600604).

660572 is a wasteful number, since it uses less digits than its factorization.

660572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15028 (or 15026 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 660572 is about 812.7558058851. The cubic root of 660572 is about 87.0910220134.

The spelling of 660572 in words is "six hundred sixty thousand, five hundred seventy-two".