104433781 has 2 divisors, whose sum is σ = 104433782. Its totient is φ = 104433780.

The previous prime is 104433779. The next prime is 104433803. The reversal of 104433781 is 187334401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63345681 + 41088100 = 7959^2 + 6410^2 .

It is a cyclic number.

It is not a de Polignac number, because 104433781 - 2¹ = 104433779 is a prime.

It is a super-2 number, since 2×104433781² = 21812829227911922, which contains 22 as substring.

Together with 104433779, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104436781) 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, 52216890 + 52216891.

It is an arithmetic number, because the mean of its divisors is an integer number (52216891).

Almost surely, 2^104433781 is an apocalyptic number.

It is an amenable number.

104433781 is a deficient number, since it is larger than the sum of its proper divisors (1).

104433781 is an equidigital number, since it uses as much as digits as its factorization.

104433781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 104433781 is about 10219.2847597080. The cubic root of 104433781 is about 470.9198538957.

The spelling of 104433781 in words is "one hundred four million, four hundred thirty-three thousand, seven hundred eighty-one".