12397677 has 4 divisors (see below), whose sum is σ = 16530240. Its totient is φ = 8265116.

The previous prime is 12397639. The next prime is 12397681. The reversal of 12397677 is 77679321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77679321 = 3 ⋅25893107.

It is a cyclic number.

It is not a de Polignac number, because 12397677 - 2¹⁰ = 12396653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12397687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2066277 + ... + 2066282.

It is an arithmetic number, because the mean of its divisors is an integer number (4132560).

Almost surely, 2^12397677 is an apocalyptic number.

It is an amenable number.

12397677 is a deficient number, since it is larger than the sum of its proper divisors (4132563).

12397677 is an equidigital number, since it uses as much as digits as its factorization.

12397677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4132562.

The product of its digits is 111132, while the sum is 42.

The square root of 12397677 is about 3521.0335130470. The cubic root of 12397677 is about 231.4444508123. Note that the first 4 decimals are identical.

The spelling of 12397677 in words is "twelve million, three hundred ninety-seven thousand, six hundred seventy-seven".