8668523 has 2 divisors, whose sum is σ = 8668524. Its totient is φ = 8668522.

The previous prime is 8668519. The next prime is 8668547. The reversal of 8668523 is 3258668.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8668523 - 2² = 8668519 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (8668553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4334261 + 4334262.

It is an arithmetic number, because the mean of its divisors is an integer number (4334262).

Almost surely, 2^8668523 is an apocalyptic number.

8668523 is a deficient number, since it is larger than the sum of its proper divisors (1).

8668523 is an equidigital number, since it uses as much as digits as its factorization.

8668523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 38.

The square root of 8668523 is about 2944.2355544351. The cubic root of 8668523 is about 205.4226694829.

The spelling of 8668523 in words is "eight million, six hundred sixty-eight thousand, five hundred twenty-three".