104289389 has 4 divisors (see below), whose sum is σ = 104314620. Its totient is φ = 104264160.

The previous prime is 104289371. The next prime is 104289397. The reversal of 104289389 is 983982401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55875625 + 48413764 = 7475^2 + 6958^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104289389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104280389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4802 + ... + 15219.

It is an arithmetic number, because the mean of its divisors is an integer number (26078655).

Almost surely, 2^104289389 is an apocalyptic number.

It is an amenable number.

104289389 is a deficient number, since it is larger than the sum of its proper divisors (25231).

104289389 is an equidigital number, since it uses as much as digits as its factorization.

104289389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25230.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 104289389 is about 10212.2176337953. The cubic root of 104289389 is about 470.7027197431.

The spelling of 104289389 in words is "one hundred four million, two hundred eighty-nine thousand, three hundred eighty-nine".