6664936 has 8 divisors (see below), whose sum is σ = 12496770. Its totient is φ = 3332464.

The previous prime is 6664891. The next prime is 6664937. The reversal of 6664936 is 6394666.

It can be written as a sum of positive squares in only one way, i.e., 4384836 + 2280100 = 2094^2 + 1510^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (6664937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 416551 + ... + 416566.

Almost surely, 2^6664936 is an apocalyptic number.

It is an amenable number.

6664936 is a deficient number, since it is larger than the sum of its proper divisors (5831834).

6664936 is a wasteful number, since it uses less digits than its factorization.

6664936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833123 (or 833119 counting only the distinct ones).

The product of its digits is 139968, while the sum is 40.

The square root of 6664936 is about 2581.6537335592. The cubic root of 6664936 is about 188.1909181698.

The spelling of 6664936 in words is "six million, six hundred sixty-four thousand, nine hundred thirty-six".