168391796 has 6 divisors (see below), whose sum is σ = 294685650. Its totient is φ = 84195896.

The previous prime is 168391793. The next prime is 168391807. The reversal of 168391796 is 697193861.

168391796 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 121660900 + 46730896 = 11030^2 + 6836^2 .

It is a congruent 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 as a sum of consecutive naturals, namely, 21048971 + ... + 21048978.

It is an arithmetic number, because the mean of its divisors is an integer number (49114275).

Almost surely, 2^168391796 is an apocalyptic number.

It is an amenable number.

168391796 is a deficient number, since it is larger than the sum of its proper divisors (126293854).

168391796 is a wasteful number, since it uses less digits than its factorization.

168391796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42097953 (or 42097951 counting only the distinct ones).

The product of its digits is 489888, while the sum is 50.

The square root of 168391796 is about 12976.5864540718. The cubic root of 168391796 is about 552.2134449007.

The spelling of 168391796 in words is "one hundred sixty-eight million, three hundred ninety-one thousand, seven hundred ninety-six".