168299797 has 2 divisors, whose sum is σ = 168299798. Its totient is φ = 168299796.

The previous prime is 168299759. The next prime is 168299839. The reversal of 168299797 is 797992861.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89605156 + 78694641 = 9466^2 + 8871^2 .

It is a cyclic number.

It is not a de Polignac number, because 168299797 - 2⁷ = 168299669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168297797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84149898 + 84149899.

It is an arithmetic number, because the mean of its divisors is an integer number (84149899).

Almost surely, 2^168299797 is an apocalyptic number.

It is an amenable number.

168299797 is a deficient number, since it is larger than the sum of its proper divisors (1).

168299797 is an equidigital number, since it uses as much as digits as its factorization.

168299797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3429216, while the sum is 58.

The square root of 168299797 is about 12973.0411623489. The cubic root of 168299797 is about 552.1128613397.

The spelling of 168299797 in words is "one hundred sixty-eight million, two hundred ninety-nine thousand, seven hundred ninety-seven".