8609651 has 2 divisors, whose sum is σ = 8609652. Its totient is φ = 8609650.

The previous prime is 8609647. The next prime is 8609663. The reversal of 8609651 is 1569068.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8609651 - 2² = 8609647 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8609611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4304825 + 4304826.

It is an arithmetic number, because the mean of its divisors is an integer number (4304826).

Almost surely, 2^8609651 is an apocalyptic number.

8609651 is a deficient number, since it is larger than the sum of its proper divisors (1).

8609651 is an equidigital number, since it uses as much as digits as its factorization.

8609651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 8609651 is about 2934.2206801807. The cubic root of 8609651 is about 204.9565722007.

The spelling of 8609651 in words is "eight million, six hundred nine thousand, six hundred fifty-one".