104985613 has 8 divisors (see below), whose sum is σ = 108088568. Its totient is φ = 101896704.

The previous prime is 104985599. The next prime is 104985649. The reversal of 104985613 is 316589401.

It can be written as a sum of positive squares in 4 ways, for example, as 10156969 + 94828644 = 3187^2 + 9738^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 104985613 - 2¹³ = 104977421 is a prime.

It is a super-2 number, since 2×104985613² = 22043957873971538, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104985113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12745 + ... + 19297.

It is an arithmetic number, because the mean of its divisors is an integer number (13511071).

Almost surely, 2^104985613 is an apocalyptic number.

It is an amenable number.

104985613 is a deficient number, since it is larger than the sum of its proper divisors (3102955).

104985613 is an equidigital number, since it uses as much as digits as its factorization.

104985613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7023.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 104985613 is about 10246.2487281932. The cubic root of 104985613 is about 471.7478499163.

The spelling of 104985613 in words is "one hundred four million, nine hundred eighty-five thousand, six hundred thirteen".