12905717 has 8 divisors (see below), whose sum is σ = 14154240. Its totient is φ = 11669760.

The previous prime is 12905713. The next prime is 12905723. The reversal of 12905717 is 71750921.

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 12905717 - 2² = 12905713 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12905713) 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, 917 + ... + 5162.

It is an arithmetic number, because the mean of its divisors is an integer number (1769280).

Almost surely, 2^12905717 is an apocalyptic number.

It is an amenable number.

12905717 is a deficient number, since it is larger than the sum of its proper divisors (1248523).

12905717 is a wasteful number, since it uses less digits than its factorization.

With its successor (12905718) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (6283).

12905717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6283.

The product of its (nonzero) digits is 4410, while the sum is 32.

The square root of 12905717 is about 3592.4527832666. The cubic root of 12905717 is about 234.5636508264.

It can be divided in two parts, 1290 and 5717, that added together give a palindrome (7007).

The spelling of 12905717 in words is "twelve million, nine hundred five thousand, seven hundred seventeen".