168628704 has 24 divisors (see below), whose sum is σ = 442650600. Its totient is φ = 56209536.

The previous prime is 168628699. The next prime is 168628723. The reversal of 168628704 is 407826861.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 878179 + ... + 878370.

It is an arithmetic number, because the mean of its divisors is an integer number (18443775).

Almost surely, 2^168628704 is an apocalyptic number.

It is an amenable number.

168628704 is an abundant number, since it is smaller than the sum of its proper divisors (274021896).

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

168628704 is a wasteful number, since it uses less digits than its factorization.

168628704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756562 (or 1756554 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 168628704 is about 12985.7115322958. The cubic root of 168628704 is about 552.4722906054.

The spelling of 168628704 in words is "one hundred sixty-eight million, six hundred twenty-eight thousand, seven hundred four".