8642951 has 2 divisors, whose sum is σ = 8642952. Its totient is φ = 8642950.

The previous prime is 8642947. The next prime is 8642989. The reversal of 8642951 is 1592468.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8642951 - 2² = 8642947 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8642911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4321475 + 4321476.

It is an arithmetic number, because the mean of its divisors is an integer number (4321476).

Almost surely, 2^8642951 is an apocalyptic number.

8642951 is a deficient number, since it is larger than the sum of its proper divisors (1).

8642951 is an equidigital number, since it uses as much as digits as its factorization.

8642951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 35.

The square root of 8642951 is about 2939.8896237784. The cubic root of 8642951 is about 205.2204726967.

The spelling of 8642951 in words is "eight million, six hundred forty-two thousand, nine hundred fifty-one".