64908671 has 2 divisors, whose sum is σ = 64908672. Its totient is φ = 64908670.

The previous prime is 64908659. The next prime is 64908689. The reversal of 64908671 is 17680946.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64908671 - 2¹⁴ = 64892287 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64908071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32454335 + 32454336.

It is an arithmetic number, because the mean of its divisors is an integer number (32454336).

Almost surely, 2^64908671 is an apocalyptic number.

64908671 is a deficient number, since it is larger than the sum of its proper divisors (1).

64908671 is an equidigital number, since it uses as much as digits as its factorization.

64908671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 64908671 is about 8056.5917732004. The cubic root of 64908671 is about 401.8841753559.

The spelling of 64908671 in words is "sixty-four million, nine hundred eight thousand, six hundred seventy-one".