104306989 has 2 divisors, whose sum is σ = 104306990. Its totient is φ = 104306988.

The previous prime is 104306987. The next prime is 104307041. The reversal of 104306989 is 989603401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64931364 + 39375625 = 8058^2 + 6275^2 .

It is a cyclic number.

It is not a de Polignac number, because 104306989 - 2¹ = 104306987 is a prime.

It is a super-2 number, since 2×104306989² = 21759895908492242, which contains 22 as substring.

Together with 104306987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104306987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52153494 + 52153495.

It is an arithmetic number, because the mean of its divisors is an integer number (52153495).

Almost surely, 2^104306989 is an apocalyptic number.

It is an amenable number.

104306989 is a deficient number, since it is larger than the sum of its proper divisors (1).

104306989 is an equidigital number, since it uses as much as digits as its factorization.

104306989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 104306989 is about 10213.0793103745. The cubic root of 104306989 is about 470.7291970354.

The spelling of 104306989 in words is "one hundred four million, three hundred six thousand, nine hundred eighty-nine".