667432 has 16 divisors (see below), whose sum is σ = 1317600. Its totient is φ = 316080.

The previous prime is 667427. The next prime is 667441. The reversal of 667432 is 234766.

It is a self number, because there is not a number n which added to its sum of digits gives 667432.

It is an unprimeable number.

667432 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2044 + ... + 2347.

It is an arithmetic number, because the mean of its divisors is an integer number (82350).

2⁶⁶⁷⁴³² is an apocalyptic number.

It is an amenable number.

667432 is a deficient number, since it is larger than the sum of its proper divisors (650168).

667432 is a wasteful number, since it uses less digits than its factorization.

667432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4416 (or 4412 counting only the distinct ones).

The product of its digits is 6048, while the sum is 28.

The square root of 667432 is about 816.9651155343. The cubic root of 667432 is about 87.3914627021.

The spelling of 667432 in words is "six hundred sixty-seven thousand, four hundred thirty-two".