104015987 has 2 divisors, whose sum is σ = 104015988. Its totient is φ = 104015986.

The previous prime is 104015983. The next prime is 104016023. The reversal of 104015987 is 789510401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104015987 - 2² = 104015983 is a prime.

It is not a weakly prime, because it can be changed into another prime (104015981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52007993 + 52007994.

It is an arithmetic number, because the mean of its divisors is an integer number (52007994).

Almost surely, 2^104015987 is an apocalyptic number.

104015987 is a deficient number, since it is larger than the sum of its proper divisors (1).

104015987 is an equidigital number, since it uses as much as digits as its factorization.

104015987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 104015987 is about 10198.8228242283. The cubic root of 104015987 is about 470.2910329683.

The spelling of 104015987 in words is "one hundred four million, fifteen thousand, nine hundred eighty-seven".