104408389 has 2 divisors, whose sum is σ = 104408390. Its totient is φ = 104408388.

The previous prime is 104408383. The next prime is 104408399. The reversal of 104408389 is 983804401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71115489 + 33292900 = 8433^2 + 5770^2 .

It is a cyclic number.

It is not a de Polignac number, because 104408389 - 2⁷ = 104408261 is a prime.

It is a super-2 number, since 2×104408389² = 21802223387150642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104408383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52204194 + 52204195.

It is an arithmetic number, because the mean of its divisors is an integer number (52204195).

Almost surely, 2^104408389 is an apocalyptic number.

It is an amenable number.

104408389 is a deficient number, since it is larger than the sum of its proper divisors (1).

104408389 is an equidigital number, since it uses as much as digits as its factorization.

104408389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 104408389 is about 10218.0423271779. The cubic root of 104408389 is about 470.8816843620.

The spelling of 104408389 in words is "one hundred four million, four hundred eight thousand, three hundred eighty-nine".