168334989 has 8 divisors (see below), whose sum is σ = 224959680. Its totient is φ = 111966816.

The previous prime is 168334987. The next prime is 168334997. The reversal of 168334989 is 989433861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 168334989 - 2¹ = 168334987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168334987) 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 7 ways as a sum of consecutive naturals, for example, 62592 + ... + 65225.

It is an arithmetic number, because the mean of its divisors is an integer number (28119960).

Almost surely, 2^168334989 is an apocalyptic number.

It is an amenable number.

168334989 is a deficient number, since it is larger than the sum of its proper divisors (56624691).

168334989 is a wasteful number, since it uses less digits than its factorization.

168334989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128259.

The product of its digits is 1119744, while the sum is 51.

The square root of 168334989 is about 12974.3974426561. The cubic root of 168334989 is about 552.1513414845.

The spelling of 168334989 in words is "one hundred sixty-eight million, three hundred thirty-four thousand, nine hundred eighty-nine".