668932 has 24 divisors (see below), whose sum is σ = 1334592. Its totient is φ = 290400.

The previous prime is 668929. The next prime is 668939. The reversal of 668932 is 239866.

It is a happy number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (668939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 682 + ... + 1342.

It is an arithmetic number, because the mean of its divisors is an integer number (55608).

2⁶⁶⁸⁹³² is an apocalyptic number.

It is an amenable number.

668932 is a deficient number, since it is larger than the sum of its proper divisors (665660).

668932 is a wasteful number, since it uses less digits than its factorization.

668932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699 (or 697 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 668932 is about 817.8826321667. The cubic root of 668932 is about 87.4568821574.

It can be divided in two parts, 668 and 932, that added together give a square (1600 = 40²).

The spelling of 668932 in words is "six hundred sixty-eight thousand, nine hundred thirty-two".