168764804 has 24 divisors (see below), whose sum is σ = 329027160. Its totient is φ = 75204864.

The previous prime is 168764803. The next prime is 168764819. The reversal of 168764804 is 408467861.

It can be written as a sum of positive squares in 4 ways, for example, as 39715204 + 129049600 = 6302^2 + 11360^2 .

It is not an unprimeable number, because it can be changed into a prime (168764801) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 54449 + ... + 57464.

It is an arithmetic number, because the mean of its divisors is an integer number (13709465).

Almost surely, 2^168764804 is an apocalyptic number.

It is an amenable number.

168764804 is a deficient number, since it is larger than the sum of its proper divisors (160262356).

168764804 is a wasteful number, since it uses less digits than its factorization.

168764804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111959 (or 111957 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 168764804 is about 12990.9508504959. The cubic root of 168764804 is about 552.6208838501.

The spelling of 168764804 in words is "one hundred sixty-eight million, seven hundred sixty-four thousand, eight hundred four".