104289979 has 2 divisors, whose sum is σ = 104289980. Its totient is φ = 104289978.

The previous prime is 104289971. The next prime is 104290009. The reversal of 104289979 is 979982401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104289979 - 2³ = 104289971 is a prime.

It is not a weakly prime, because it can be changed into another prime (104289971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52144989 + 52144990.

It is an arithmetic number, because the mean of its divisors is an integer number (52144990).

Almost surely, 2^104289979 is an apocalyptic number.

104289979 is a deficient number, since it is larger than the sum of its proper divisors (1).

104289979 is an equidigital number, since it uses as much as digits as its factorization.

104289979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 104289979 is about 10212.2465207221. The cubic root of 104289979 is about 470.7036073824.

The spelling of 104289979 in words is "one hundred four million, two hundred eighty-nine thousand, nine hundred seventy-nine".