104894381 has 2 divisors, whose sum is σ = 104894382. Its totient is φ = 104894380.

The previous prime is 104894353. The next prime is 104894401. The reversal of 104894381 is 183498401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54612100 + 50282281 = 7390^2 + 7091^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104894381 is a prime.

It is a super-2 number, since 2×104894381² = 22005662330746322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104894311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52447190 + 52447191.

It is an arithmetic number, because the mean of its divisors is an integer number (52447191).

Almost surely, 2^104894381 is an apocalyptic number.

It is an amenable number.

104894381 is a deficient number, since it is larger than the sum of its proper divisors (1).

104894381 is an equidigital number, since it uses as much as digits as its factorization.

104894381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 104894381 is about 10241.7957898017. The cubic root of 104894381 is about 471.6111614330.

The spelling of 104894381 in words is "one hundred four million, eight hundred ninety-four thousand, three hundred eighty-one".