104382809 has 12 divisors (see below), whose sum is σ = 112088676. Its totient is φ = 97127712.

The previous prime is 104382799. The next prime is 104382821. The reversal of 104382809 is 908283401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 100560784 + 3822025 = 10028^2 + 1955^2 .

It is not a de Polignac number, because 104382809 - 2¹² = 104378713 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 (104382829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16907 + ... + 22239.

It is an arithmetic number, because the mean of its divisors is an integer number (9340723).

Almost surely, 2^104382809 is an apocalyptic number.

It is an amenable number.

104382809 is a deficient number, since it is larger than the sum of its proper divisors (7705867).

104382809 is an equidigital number, since it uses as much as digits as its factorization.

104382809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5416 (or 5393 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 104382809 is about 10216.7905430228. The cubic root of 104382809 is about 470.8432259666.

The spelling of 104382809 in words is "one hundred four million, three hundred eighty-two thousand, eight hundred nine".