104636891 has 2 divisors, whose sum is σ = 104636892. Its totient is φ = 104636890.

The previous prime is 104636863. The next prime is 104636897. The reversal of 104636891 is 198636401.

It is a strong prime.

It is an emirp because it is prime and its reverse (198636401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104636891 - 2⁶ = 104636827 is a prime.

It is not a weakly prime, because it can be changed into another prime (104636897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52318445 + 52318446.

It is an arithmetic number, because the mean of its divisors is an integer number (52318446).

Almost surely, 2^104636891 is an apocalyptic number.

104636891 is a deficient number, since it is larger than the sum of its proper divisors (1).

104636891 is an equidigital number, since it uses as much as digits as its factorization.

104636891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 104636891 is about 10229.2175165063. The cubic root of 104636891 is about 471.2249486316.

The spelling of 104636891 in words is "one hundred four million, six hundred thirty-six thousand, eight hundred ninety-one".