8649967 has 2 divisors, whose sum is σ = 8649968. Its totient is φ = 8649966.

The previous prime is 8649937. The next prime is 8649973. The reversal of 8649967 is 7699468.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8649967 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8649967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8649937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4324983 + 4324984.

It is an arithmetic number, because the mean of its divisors is an integer number (4324984).

Almost surely, 2^8649967 is an apocalyptic number.

8649967 is a deficient number, since it is larger than the sum of its proper divisors (1).

8649967 is an equidigital number, since it uses as much as digits as its factorization.

8649967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 49.

The square root of 8649967 is about 2941.0826237969. The cubic root of 8649967 is about 205.2759875864.

The spelling of 8649967 in words is "eight million, six hundred forty-nine thousand, nine hundred sixty-seven".