170908963 has 2 divisors, whose sum is σ = 170908964. Its totient is φ = 170908962.

The previous prime is 170908943. The next prime is 170909029. The reversal of 170908963 is 369809071.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 170908963 - 2¹⁷ = 170777891 is a prime.

It is not a weakly prime, because it can be changed into another prime (170908943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85454481 + 85454482.

It is an arithmetic number, because the mean of its divisors is an integer number (85454482).

Almost surely, 2^170908963 is an apocalyptic number.

170908963 is a deficient number, since it is larger than the sum of its proper divisors (1).

170908963 is an equidigital number, since it uses as much as digits as its factorization.

170908963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 170908963 is about 13073.2154805159. The cubic root of 170908963 is about 554.9513936276.

The spelling of 170908963 in words is "one hundred seventy million, nine hundred eight thousand, nine hundred sixty-three".