104781893 has 2 divisors, whose sum is σ = 104781894. Its totient is φ = 104781892.

The previous prime is 104781889. The next prime is 104781907. The reversal of 104781893 is 398187401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61984129 + 42797764 = 7873^2 + 6542^2 .

It is a cyclic number.

It is not a de Polignac number, because 104781893 - 2² = 104781889 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104781893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104781883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52390946 + 52390947.

It is an arithmetic number, because the mean of its divisors is an integer number (52390947).

Almost surely, 2^104781893 is an apocalyptic number.

It is an amenable number.

104781893 is a deficient number, since it is larger than the sum of its proper divisors (1).

104781893 is an equidigital number, since it uses as much as digits as its factorization.

104781893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 104781893 is about 10236.3027016594. The cubic root of 104781893 is about 471.4425169647.

The spelling of 104781893 in words is "one hundred four million, seven hundred eighty-one thousand, eight hundred ninety-three".