104889091 has 2 divisors, whose sum is σ = 104889092. Its totient is φ = 104889090.

The previous prime is 104889077. The next prime is 104889137. The reversal of 104889091 is 190988401.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104889091 is a prime.

It is a super-2 number, since 2×104889091² = 22003442821612562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (104889061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52444545 + 52444546.

It is an arithmetic number, because the mean of its divisors is an integer number (52444546).

Almost surely, 2^104889091 is an apocalyptic number.

104889091 is a deficient number, since it is larger than the sum of its proper divisors (1).

104889091 is an equidigital number, since it uses as much as digits as its factorization.

104889091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 104889091 is about 10241.5375310546. The cubic root of 104889091 is about 471.6032332518.

The spelling of 104889091 in words is "one hundred four million, eight hundred eighty-nine thousand, ninety-one".