8954639 has 2 divisors, whose sum is σ = 8954640. Its totient is φ = 8954638.

The previous prime is 8954609. The next prime is 8954641. The reversal of 8954639 is 9364598.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8954639 is a prime.

Together with 8954641, it forms a pair of twin primes.

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 8954639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8954609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4477319 + 4477320.

It is an arithmetic number, because the mean of its divisors is an integer number (4477320).

Almost surely, 2^8954639 is an apocalyptic number.

8954639 is a deficient number, since it is larger than the sum of its proper divisors (1).

8954639 is an equidigital number, since it uses as much as digits as its factorization.

8954639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 44.

The square root of 8954639 is about 2992.4302832313. The cubic root of 8954639 is about 207.6583317607.

The spelling of 8954639 in words is "eight million, nine hundred fifty-four thousand, six hundred thirty-nine".