8664290 has 16 divisors (see below), whose sum is σ = 16017912. Its totient is φ = 3371904.

The previous prime is 8664259. The next prime is 8664311. The reversal of 8664290 is 924668.

It can be written as a sum of positive squares in 4 ways, for example, as 8025889 + 638401 = 2833^2 + 799^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8664290.

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, 11339 + ... + 12078.

Almost surely, 2^8664290 is an apocalyptic number.

8664290 is a deficient number, since it is larger than the sum of its proper divisors (7353622).

8664290 is a wasteful number, since it uses less digits than its factorization.

8664290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23461.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 8664290 is about 2943.5166043357. The cubic root of 8664290 is about 205.3892268100.

The spelling of 8664290 in words is "eight million, six hundred sixty-four thousand, two hundred ninety".