168739064 has 48 divisors (see below), whose sum is σ = 345474720. Its totient is φ = 77226240.

The previous prime is 168739061. The next prime is 168739069. The reversal of 168739064 is 460937861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168739061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184769 + ... + 185679.

It is an arithmetic number, because the mean of its divisors is an integer number (7197390).

Almost surely, 2^168739064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168739064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172737360).

168739064 is an abundant number, since it is smaller than the sum of its proper divisors (176735656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168739064 is a wasteful number, since it uses less digits than its factorization.

168739064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080 (or 1063 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 168739064 is about 12989.9601231105. The cubic root of 168739064 is about 552.5927871846.

The spelling of 168739064 in words is "one hundred sixty-eight million, seven hundred thirty-nine thousand, sixty-four".