104056891 has 2 divisors, whose sum is σ = 104056892. Its totient is φ = 104056890.

The previous prime is 104056877. The next prime is 104056907. The reversal of 104056891 is 198650401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104056891 - 2⁷ = 104056763 is a prime.

It is equal to p_5981605 and since 104056891 and 5981605 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (104056831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52028445 + 52028446.

It is an arithmetic number, because the mean of its divisors is an integer number (52028446).

Almost surely, 2^104056891 is an apocalyptic number.

104056891 is a deficient number, since it is larger than the sum of its proper divisors (1).

104056891 is an equidigital number, since it uses as much as digits as its factorization.

104056891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 104056891 is about 10200.8279565925. The cubic root of 104056891 is about 470.3526717731.

The spelling of 104056891 in words is "one hundred four million, fifty-six thousand, eight hundred ninety-one".