168487667 has 2 divisors, whose sum is σ = 168487668. Its totient is φ = 168487666.

The previous prime is 168487637. The next prime is 168487691. The reversal of 168487667 is 766784861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168487667 - 2⁸ = 168487411 is a prime.

It is a super-2 number, since 2×168487667² = 56776187862205778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (168487607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84243833 + 84243834.

It is an arithmetic number, because the mean of its divisors is an integer number (84243834).

Almost surely, 2^168487667 is an apocalyptic number.

168487667 is a deficient number, since it is larger than the sum of its proper divisors (1).

168487667 is an equidigital number, since it uses as much as digits as its factorization.

168487667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2709504, while the sum is 53.

The square root of 168487667 is about 12980.2799276441. The cubic root of 168487667 is about 552.3182227908.

The spelling of 168487667 in words is "one hundred sixty-eight million, four hundred eighty-seven thousand, six hundred sixty-seven".