664522284 has 24 divisors (see below), whose sum is σ = 1583543808. Its totient is φ = 216794320.

The previous prime is 664522277. The next prime is 664522307. The reversal of 664522284 is 482225466.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 588552 + ... + 589679.

It is an arithmetic number, because the mean of its divisors is an integer number (65980992).

Almost surely, 2^664522284 is an apocalyptic number.

It is an amenable number.

664522284 is an abundant number, since it is smaller than the sum of its proper divisors (919021524).

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

664522284 is a wasteful number, since it uses less digits than its factorization.

664522284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178285 (or 1178283 counting only the distinct ones).

The product of its digits is 184320, while the sum is 39.

The square root of 664522284 is about 25778.3297364278. The cubic root of 664522284 is about 872.6428132715.

The spelling of 664522284 in words is "six hundred sixty-four million, five hundred twenty-two thousand, two hundred eighty-four".