667952 has 20 divisors (see below), whose sum is σ = 1309440. Its totient is φ = 330048.

The previous prime is 667949. The next prime is 667963. The reversal of 667952 is 259766.

It is a plaindrome in base 14.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1553 + ... + 1935.

It is an arithmetic number, because the mean of its divisors is an integer number (65472).

2⁶⁶⁷⁹⁵² is an apocalyptic number.

It is an amenable number.

667952 is a deficient number, since it is larger than the sum of its proper divisors (641488).

667952 is a wasteful number, since it uses less digits than its factorization.

667952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500 (or 494 counting only the distinct ones).

The product of its digits is 22680, while the sum is 35.

The square root of 667952 is about 817.2833046135. The cubic root of 667952 is about 87.4141525361.

The spelling of 667952 in words is "six hundred sixty-seven thousand, nine hundred fifty-two".