104842087 has 4 divisors (see below), whose sum is σ = 119819536. Its totient is φ = 89864640.

The previous prime is 104842081. The next prime is 104842091. The reversal of 104842087 is 780248401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104842087 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 (104842081) 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 in 3 ways as a sum of consecutive naturals, for example, 7488714 + ... + 7488727.

It is an arithmetic number, because the mean of its divisors is an integer number (29954884).

Almost surely, 2^104842087 is an apocalyptic number.

104842087 is a deficient number, since it is larger than the sum of its proper divisors (14977449).

104842087 is an equidigital number, since it uses as much as digits as its factorization.

104842087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14977448.

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 104842087 is about 10239.2425012791. The cubic root of 104842087 is about 471.5327761297.

The spelling of 104842087 in words is "one hundred four million, eight hundred forty-two thousand, eighty-seven".