102386489 has 2 divisors, whose sum is σ = 102386490. Its totient is φ = 102386488.

The previous prime is 102386467. The next prime is 102386503. The reversal of 102386489 is 984683201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69438889 + 32947600 = 8333^2 + 5740^2 .

It is a cyclic number.

It is not a de Polignac number, because 102386489 - 2²⁴ = 85609273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102386789) 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, 51193244 + 51193245.

It is an arithmetic number, because the mean of its divisors is an integer number (51193245).

Almost surely, 2^102386489 is an apocalyptic number.

It is an amenable number.

102386489 is a deficient number, since it is larger than the sum of its proper divisors (1).

102386489 is an equidigital number, since it uses as much as digits as its factorization.

102386489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 102386489 is about 10118.6209040560. The cubic root of 102386489 is about 467.8222609571.

The spelling of 102386489 in words is "one hundred two million, three hundred eighty-six thousand, four hundred eighty-nine".