102697999 has 2 divisors, whose sum is σ = 102698000. Its totient is φ = 102697998.

The previous prime is 102697993. The next prime is 102698017. The reversal of 102697999 is 999796201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102697999 - 2¹¹ = 102695951 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102697993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51348999 + 51349000.

It is an arithmetic number, because the mean of its divisors is an integer number (51349000).

Almost surely, 2^102697999 is an apocalyptic number.

102697999 is a deficient number, since it is larger than the sum of its proper divisors (1).

102697999 is an equidigital number, since it uses as much as digits as its factorization.

102697999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 551124, while the sum is 52.

The square root of 102697999 is about 10134.0021215707. The cubic root of 102697999 is about 468.2962289836.

The spelling of 102697999 in words is "one hundred two million, six hundred ninety-seven thousand, nine hundred ninety-nine".