168391794 has 32 divisors (see below), whose sum is σ = 355380480. Its totient is φ = 53045712.

The previous prime is 168391793. The next prime is 168391807. The reversal of 168391794 is 497193861.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (168391793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51657 + ... + 54819.

It is an arithmetic number, because the mean of its divisors is an integer number (11105640).

Almost surely, 2^168391794 is an apocalyptic number.

168391794 is an abundant number, since it is smaller than the sum of its proper divisors (186988686).

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

168391794 is a wasteful number, since it uses less digits than its factorization.

168391794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3654.

The product of its digits is 326592, while the sum is 48.

The square root of 168391794 is about 12976.5863770099. The cubic root of 168391794 is about 552.2134427144.

The spelling of 168391794 in words is "one hundred sixty-eight million, three hundred ninety-one thousand, seven hundred ninety-four".