8664959 has 2 divisors, whose sum is σ = 8664960. Its totient is φ = 8664958.

The previous prime is 8664949. The next prime is 8664961. The reversal of 8664959 is 9594668.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8664959 - 2¹² = 8660863 is a prime.

Together with 8664961, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8664949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4332479 + 4332480.

It is an arithmetic number, because the mean of its divisors is an integer number (4332480).

Almost surely, 2^8664959 is an apocalyptic number.

8664959 is a deficient number, since it is larger than the sum of its proper divisors (1).

8664959 is an equidigital number, since it uses as much as digits as its factorization.

8664959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 47.

The square root of 8664959 is about 2943.6302417253. The cubic root of 8664959 is about 205.3945129464.

The spelling of 8664959 in words is "eight million, six hundred sixty-four thousand, nine hundred fifty-nine".