667088 has 20 divisors (see below), whose sum is σ = 1305348. Its totient is φ = 330240.

The previous prime is 667081. The next prime is 667091. The reversal of 667088 is 880766.

It can be written as a sum of positive squares in 2 ways, for example, as 559504 + 107584 = 748^2 + 328^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2648 + ... + 2888.

2⁶⁶⁷⁰⁸⁸ is an apocalyptic number.

It is an amenable number.

667088 is a deficient number, since it is larger than the sum of its proper divisors (638260).

667088 is a wasteful number, since it uses less digits than its factorization.

667088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 667088 is about 816.7545530941. The cubic root of 667088 is about 87.3764460265.

The spelling of 667088 in words is "six hundred sixty-seven thousand, eighty-eight".