104044991 has 2 divisors, whose sum is σ = 104044992. Its totient is φ = 104044990.

The previous prime is 104044979. The next prime is 104045009. The reversal of 104044991 is 199440401.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104044991 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104044901) 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, 52022495 + 52022496.

It is an arithmetic number, because the mean of its divisors is an integer number (52022496).

Almost surely, 2^104044991 is an apocalyptic number.

104044991 is a deficient number, since it is larger than the sum of its proper divisors (1).

104044991 is an equidigital number, since it uses as much as digits as its factorization.

104044991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 104044991 is about 10200.2446539286. The cubic root of 104044991 is about 470.3347411644.

The spelling of 104044991 in words is "one hundred four million, forty-four thousand, nine hundred ninety-one".