168286997 has 2 divisors, whose sum is σ = 168286998. Its totient is φ = 168286996.

The previous prime is 168286981. The next prime is 168286999. The reversal of 168286997 is 799682861.

168286997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85858756 + 82428241 = 9266^2 + 9079^2 .

It is a cyclic number.

It is not a de Polignac number, because 168286997 - 2⁴ = 168286981 is a prime.

Together with 168286999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168286999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84143498 + 84143499.

It is an arithmetic number, because the mean of its divisors is an integer number (84143499).

Almost surely, 2^168286997 is an apocalyptic number.

It is an amenable number.

168286997 is a deficient number, since it is larger than the sum of its proper divisors (1).

168286997 is an equidigital number, since it uses as much as digits as its factorization.

168286997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 56.

The square root of 168286997 is about 12972.5478222283. The cubic root of 168286997 is about 552.0988640485.

The spelling of 168286997 in words is "one hundred sixty-eight million, two hundred eighty-six thousand, nine hundred ninety-seven".