8103913 has 4 divisors (see below), whose sum is σ = 8148868. Its totient is φ = 8058960.

The previous prime is 8103863. The next prime is 8103923. The reversal of 8103913 is 3193018.

8103913 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3193018 = 2 ⋅1596509.

It can be written as a sum of positive squares in 2 ways, for example, as 2111209 + 5992704 = 1453^2 + 2448^2 .

It is a cyclic number.

It is not a de Polignac number, because 8103913 - 2⁹ = 8103401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8103923) 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, 22206 + ... + 22567.

It is an arithmetic number, because the mean of its divisors is an integer number (2037217).

Almost surely, 2^8103913 is an apocalyptic number.

It is an amenable number.

8103913 is a deficient number, since it is larger than the sum of its proper divisors (44955).

8103913 is a wasteful number, since it uses less digits than its factorization.

8103913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44954.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 8103913 is about 2846.7372551748. The cubic root of 8103913 is about 200.8622192152.

The spelling of 8103913 in words is "eight million, one hundred three thousand, nine hundred thirteen".