12713905 has 8 divisors (see below), whose sum is σ = 15544872. Its totient is φ = 9979008.

The previous prime is 12713893. The next prime is 12713927. The reversal of 12713905 is 50931721.

It can be written as a sum of positive squares in 4 ways, for example, as 6677056 + 6036849 = 2584^2 + 2457^2 .

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 12713905 - 2⁵ = 12713873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23724 + ... + 24253.

It is an arithmetic number, because the mean of its divisors is an integer number (1943109).

Almost surely, 2^12713905 is an apocalyptic number.

It is an amenable number.

12713905 is a deficient number, since it is larger than the sum of its proper divisors (2830967).

12713905 is an equidigital number, since it uses as much as digits as its factorization.

12713905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48035.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 12713905 is about 3565.6563210719. The cubic root of 12713905 is about 233.3957735389.

The spelling of 12713905 in words is "twelve million, seven hundred thirteen thousand, nine hundred five".