6664692 has 12 divisors (see below), whose sum is σ = 15550976. Its totient is φ = 2221560.

The previous prime is 6664667. The next prime is 6664711. The reversal of 6664692 is 2964666.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6664692.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277684 + ... + 277707.

Almost surely, 2^6664692 is an apocalyptic number.

It is an amenable number.

6664692 is an abundant number, since it is smaller than the sum of its proper divisors (8886284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6664692 is a wasteful number, since it uses less digits than its factorization.

6664692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555398 (or 555396 counting only the distinct ones).

The product of its digits is 93312, while the sum is 39.

The square root of 6664692 is about 2581.6064765955. The cubic root of 6664692 is about 188.1886216164.

The spelling of 6664692 in words is "six million, six hundred sixty-four thousand, six hundred ninety-two".