168089629 has 2 divisors, whose sum is σ = 168089630. Its totient is φ = 168089628.

The previous prime is 168089573. The next prime is 168089653. The reversal of 168089629 is 926980861.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156000100 + 12089529 = 12490^2 + 3477^2 .

It is an emirp because it is prime and its reverse (926980861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168089629 - 2⁷ = 168089501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168089689) 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, 84044814 + 84044815.

It is an arithmetic number, because the mean of its divisors is an integer number (84044815).

Almost surely, 2^168089629 is an apocalyptic number.

It is an amenable number.

168089629 is a deficient number, since it is larger than the sum of its proper divisors (1).

168089629 is an equidigital number, since it uses as much as digits as its factorization.

168089629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 168089629 is about 12964.9384495261. The cubic root of 168089629 is about 551.8829446623.

The spelling of 168089629 in words is "one hundred sixty-eight million, eighty-nine thousand, six hundred twenty-nine".