12516397 has 8 divisors (see below), whose sum is σ = 13155296. Its totient is φ = 11893392.

The previous prime is 12516389. The next prime is 12516401. The reversal of 12516397 is 79361521.

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 12516397 - 2³ = 12516389 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 (12546397) 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, 2343 + ... + 5524.

It is an arithmetic number, because the mean of its divisors is an integer number (1644412).

Almost surely, 2^12516397 is an apocalyptic number.

It is an amenable number.

12516397 is a deficient number, since it is larger than the sum of its proper divisors (638899).

12516397 is an equidigital number, since it uses as much as digits as its factorization.

12516397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7947.

The product of its digits is 11340, while the sum is 34.

The square root of 12516397 is about 3537.8520319539. The cubic root of 12516397 is about 232.1808748510.

The spelling of 12516397 in words is "twelve million, five hundred sixteen thousand, three hundred ninety-seven".