104608781 has 4 divisors (see below), whose sum is σ = 106041852. Its totient is φ = 103175712.

The previous prime is 104608741. The next prime is 104608783. The reversal of 104608781 is 187806401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72505225 + 32103556 = 8515^2 + 5666^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104608781 is a prime.

It is a super-2 number, since 2×104608781² = 21885994124611922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104608783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 716426 + ... + 716571.

It is an arithmetic number, because the mean of its divisors is an integer number (26510463).

Almost surely, 2^104608781 is an apocalyptic number.

It is an amenable number.

104608781 is a deficient number, since it is larger than the sum of its proper divisors (1433071).

104608781 is an equidigital number, since it uses as much as digits as its factorization.

104608781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433070.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 104608781 is about 10227.8434188249. The cubic root of 104608781 is about 471.1827477102.

The spelling of 104608781 in words is "one hundred four million, six hundred eight thousand, seven hundred eighty-one".