12901817 has 8 divisors (see below), whose sum is σ = 13615200. Its totient is φ = 12191904.

The previous prime is 12901813. The next prime is 12901831. The reversal of 12901817 is 71810921.

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 12901817 - 2² = 12901813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12901817.

It is not an unprimeable number, because it can be changed into a prime (12901813) 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, 11213 + ... + 12309.

It is an arithmetic number, because the mean of its divisors is an integer number (1701900).

Almost surely, 2^12901817 is an apocalyptic number.

It is an amenable number.

12901817 is a deficient number, since it is larger than the sum of its proper divisors (713383).

12901817 is a wasteful number, since it uses less digits than its factorization.

12901817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 12901817 is about 3591.9099376237. The cubic root of 12901817 is about 234.5400207199.

The spelling of 12901817 in words is "twelve million, nine hundred one thousand, eight hundred seventeen".