168890967 has 16 divisors (see below), whose sum is σ = 285953280. Its totient is φ = 96509016.

The previous prime is 168890959. The next prime is 168890989. The reversal of 168890967 is 769098861.

It is not a de Polignac number, because 168890967 - 2³ = 168890959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168890167) 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 in 15 ways as a sum of consecutive naturals, for example, 446613 + ... + 446990.

It is an arithmetic number, because the mean of its divisors is an integer number (17872080).

Almost surely, 2^168890967 is an apocalyptic number.

168890967 is a deficient number, since it is larger than the sum of its proper divisors (117062313).

168890967 is an equidigital number, since it uses as much as digits as its factorization.

168890967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893619 (or 893613 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 168890967 is about 12995.8057464707. The cubic root of 168890967 is about 552.7585565967.

The spelling of 168890967 in words is "one hundred sixty-eight million, eight hundred ninety thousand, nine hundred sixty-seven".