168977312 has 48 divisors (see below), whose sum is σ = 381225600. Its totient is φ = 72223488.

The previous prime is 168977273. The next prime is 168977323. The reversal of 168977312 is 213779861.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108314 + ... + 109862.

It is an arithmetic number, because the mean of its divisors is an integer number (7942200).

Almost surely, 2^168977312 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 168977312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190612800).

168977312 is an abundant number, since it is smaller than the sum of its proper divisors (212248288).

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

168977312 is a wasteful number, since it uses less digits than its factorization.

168977312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053 (or 2045 counting only the distinct ones).

The product of its digits is 127008, while the sum is 44.

The square root of 168977312 is about 12999.1273553266. The cubic root of 168977312 is about 552.8527392660.

The spelling of 168977312 in words is "one hundred sixty-eight million, nine hundred seventy-seven thousand, three hundred twelve".