660597 has 16 divisors (see below), whose sum is σ = 1021440. Its totient is φ = 371952.

The previous prime is 660593. The next prime is 660599. The reversal of 660597 is 795066.

It is not a de Polignac number, because 660597 - 2² = 660593 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1554 + ... + 1932.

It is an arithmetic number, because the mean of its divisors is an integer number (63840).

2⁶⁶⁰⁵⁹⁷ is an apocalyptic number.

It is an amenable number.

660597 is a deficient number, since it is larger than the sum of its proper divisors (360843).

660597 is a wasteful number, since it uses less digits than its factorization.

660597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 660597 is about 812.7711855129. The cubic root of 660597 is about 87.0921206815.

It can be divided in two parts, 66059 and 7, that added together give a palindrome (66066).

The spelling of 660597 in words is "six hundred sixty thousand, five hundred ninety-seven".