12412637 has 4 divisors (see below), whose sum is σ = 12433500. Its totient is φ = 12391776.

The previous prime is 12412583. The next prime is 12412657. The reversal of 12412637 is 73621421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73621421 = 113 ⋅651517.

It can be written as a sum of positive squares in 2 ways, for example, as 1196836 + 11215801 = 1094^2 + 3349^2 .

It is a cyclic number.

It is not a de Polignac number, because 12412637 - 2⁶ = 12412573 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 (12412657) 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, 9512 + ... + 10737.

It is an arithmetic number, because the mean of its divisors is an integer number (3108375).

Almost surely, 2^12412637 is an apocalyptic number.

It is an amenable number.

12412637 is a deficient number, since it is larger than the sum of its proper divisors (20863).

12412637 is an equidigital number, since it uses as much as digits as its factorization.

12412637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20862.

The product of its digits is 2016, while the sum is 26.

The square root of 12412637 is about 3523.1572488324. The cubic root of 12412637 is about 231.5375063433.

The spelling of 12412637 in words is "twelve million, four hundred twelve thousand, six hundred thirty-seven".