86908163 has 2 divisors, whose sum is σ = 86908164. Its totient is φ = 86908162.

The previous prime is 86908141. The next prime is 86908193. The reversal of 86908163 is 36180968.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86908163 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86908163.

It is not a weakly prime, because it can be changed into another prime (86908193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43454081 + 43454082.

It is an arithmetic number, because the mean of its divisors is an integer number (43454082).

Almost surely, 2^86908163 is an apocalyptic number.

86908163 is a deficient number, since it is larger than the sum of its proper divisors (1).

86908163 is an equidigital number, since it uses as much as digits as its factorization.

86908163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 86908163 is about 9322.4547732880. The cubic root of 86908163 is about 442.9487938204.

The spelling of 86908163 in words is "eighty-six million, nine hundred eight thousand, one hundred sixty-three".