168364877 has 2 divisors, whose sum is σ = 168364878. Its totient is φ = 168364876.

The previous prime is 168364831. The next prime is 168364913. The reversal of 168364877 is 778463861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143304841 + 25060036 = 11971^2 + 5006^2 .

It is a cyclic number.

It is not a de Polignac number, because 168364877 - 2⁸ = 168364621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168364817) 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 as a sum of consecutive naturals, namely, 84182438 + 84182439.

It is an arithmetic number, because the mean of its divisors is an integer number (84182439).

Almost surely, 2^168364877 is an apocalyptic number.

It is an amenable number.

168364877 is a deficient number, since it is larger than the sum of its proper divisors (1).

168364877 is an equidigital number, since it uses as much as digits as its factorization.

168364877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 50.

The square root of 168364877 is about 12975.5491983962. The cubic root of 168364877 is about 552.1840178418.

The spelling of 168364877 in words is "one hundred sixty-eight million, three hundred sixty-four thousand, eight hundred seventy-seven".