168363892 has 6 divisors (see below), whose sum is σ = 294636818. Its totient is φ = 84181944.

The previous prime is 168363809. The next prime is 168363901. The reversal of 168363892 is 298363861.

It can be written as a sum of positive squares in only one way, i.e., 157101156 + 11262736 = 12534^2 + 3356^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21045483 + ... + 21045490.

Almost surely, 2^168363892 is an apocalyptic number.

It is an amenable number.

168363892 is a deficient number, since it is larger than the sum of its proper divisors (126272926).

168363892 is a wasteful number, since it uses less digits than its factorization.

168363892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42090977 (or 42090975 counting only the distinct ones).

The product of its digits is 373248, while the sum is 46.

The square root of 168363892 is about 12975.5112423365. The cubic root of 168363892 is about 552.1829410092.

The spelling of 168363892 in words is "one hundred sixty-eight million, three hundred sixty-three thousand, eight hundred ninety-two".