12901697 has 4 divisors (see below), whose sum is σ = 12936660. Its totient is φ = 12866736.

The previous prime is 12901663. The next prime is 12901699. The reversal of 12901697 is 79610921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79610921 = 13 ⋅6123917.

It can be written as a sum of positive squares in 2 ways, for example, as 2202256 + 10699441 = 1484^2 + 3271^2 .

It is a cyclic number.

It is not a de Polignac number, because 12901697 - 2⁶ = 12901633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12901699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16922 + ... + 17667.

It is an arithmetic number, because the mean of its divisors is an integer number (3234165).

Almost surely, 2^12901697 is an apocalyptic number.

It is an amenable number.

12901697 is a deficient number, since it is larger than the sum of its proper divisors (34963).

12901697 is an equidigital number, since it uses as much as digits as its factorization.

12901697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34962.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 12901697 is about 3591.8932333799. The cubic root of 12901697 is about 234.5392935641.

The spelling of 12901697 in words is "twelve million, nine hundred one thousand, six hundred ninety-seven".