168892979 has 4 divisors (see below), whose sum is σ = 176236176. Its totient is φ = 161549784.

The previous prime is 168892951. The next prime is 168893003. The reversal of 168892979 is 979298861.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 168892979 - 2¹² = 168888883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168892579) 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 3 ways as a sum of consecutive naturals, for example, 3671564 + ... + 3671609.

It is an arithmetic number, because the mean of its divisors is an integer number (44059044).

Almost surely, 2^168892979 is an apocalyptic number.

168892979 is a deficient number, since it is larger than the sum of its proper divisors (7343197).

168892979 is an equidigital number, since it uses as much as digits as its factorization.

168892979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7343196.

The product of its digits is 3919104, while the sum is 59.

The square root of 168892979 is about 12995.8831558305. The cubic root of 168892979 is about 552.7607515943.

The spelling of 168892979 in words is "one hundred sixty-eight million, eight hundred ninety-two thousand, nine hundred seventy-nine".