104490913 has 4 divisors (see below), whose sum is σ = 105962688. Its totient is φ = 103019140.

The previous prime is 104490907. The next prime is 104490929. The reversal of 104490913 is 319094401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104490913 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104490013) 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, 735781 + ... + 735922.

It is an arithmetic number, because the mean of its divisors is an integer number (26490672).

Almost surely, 2^104490913 is an apocalyptic number.

It is an amenable number.

104490913 is a deficient number, since it is larger than the sum of its proper divisors (1471775).

104490913 is an equidigital number, since it uses as much as digits as its factorization.

104490913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471774.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 104490913 is about 10222.0796807695. The cubic root of 104490913 is about 471.0057127310.

The spelling of 104490913 in words is "one hundred four million, four hundred ninety thousand, nine hundred thirteen".