6664494 has 32 divisors (see below), whose sum is σ = 13749120. Its totient is φ = 2152800.

The previous prime is 6664481. The next prime is 6664501. The reversal of 6664494 is 4944666.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47877 + ... + 48015.

It is an arithmetic number, because the mean of its divisors is an integer number (429660).

Almost surely, 2^6664494 is an apocalyptic number.

6664494 is an abundant number, since it is smaller than the sum of its proper divisors (7084626).

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

6664494 is a wasteful number, since it uses less digits than its factorization.

6664494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336.

The product of its digits is 124416, while the sum is 39.

The square root of 6664494 is about 2581.5681280958. The cubic root of 6664494 is about 188.1867579786.

The spelling of 6664494 in words is "six million, six hundred sixty-four thousand, four hundred ninety-four".