664002326 has 16 divisors (see below), whose sum is σ = 1073568384. Its totient is φ = 306191424.

The previous prime is 664002319. The next prime is 664002349. The reversal of 664002326 is 623200466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20315 + ... + 41721.

It is an arithmetic number, because the mean of its divisors is an integer number (67098024).

Almost surely, 2^664002326 is an apocalyptic number.

664002326 is a deficient number, since it is larger than the sum of its proper divisors (409566058).

664002326 is a wasteful number, since it uses less digits than its factorization.

664002326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22615.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 664002326 is about 25768.2425865638. The cubic root of 664002326 is about 872.4151529822.

The spelling of 664002326 in words is "six hundred sixty-four million, two thousand, three hundred twenty-six".