8373664 has 24 divisors (see below), whose sum is σ = 17754660. Its totient is φ = 3864576.

The previous prime is 8373649. The next prime is 8373671. The reversal of 8373664 is 4663738.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8363664 + 10000 = 2892^2 + 100^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9649 + ... + 10480.

Almost surely, 2^8373664 is an apocalyptic number.

It is an amenable number.

8373664 is an abundant number, since it is smaller than the sum of its proper divisors (9380996).

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

8373664 is a wasteful number, since it uses less digits than its factorization.

8373664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20152 (or 20144 counting only the distinct ones).

The product of its digits is 72576, while the sum is 37.

The square root of 8373664 is about 2893.7283908480. The cubic root of 8373664 is about 203.0666059838.

The spelling of 8373664 in words is "eight million, three hundred seventy-three thousand, six hundred sixty-four".