6664298 has 4 divisors (see below), whose sum is σ = 9996450. Its totient is φ = 3332148.

The previous prime is 6664279. The next prime is 6664309. The reversal of 6664298 is 8924666.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4695889 + 1968409 = 2167^2 + 1403^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1666073 + ... + 1666076.

Almost surely, 2^6664298 is an apocalyptic number.

6664298 is a deficient number, since it is larger than the sum of its proper divisors (3332152).

6664298 is a wasteful number, since it uses less digits than its factorization.

6664298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3332151.

The product of its digits is 124416, while the sum is 41.

The square root of 6664298 is about 2581.5301663936. The cubic root of 6664298 is about 188.1849131291.

The spelling of 6664298 in words is "six million, six hundred sixty-four thousand, two hundred ninety-eight".