12620337 has 4 divisors (see below), whose sum is σ = 16827120. Its totient is φ = 8413556.

The previous prime is 12620323. The next prime is 12620339. The reversal of 12620337 is 73302621.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12620337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12620339) 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, 2103387 + ... + 2103392.

It is an arithmetic number, because the mean of its divisors is an integer number (4206780).

Almost surely, 2^12620337 is an apocalyptic number.

It is an amenable number.

12620337 is a deficient number, since it is larger than the sum of its proper divisors (4206783).

12620337 is an equidigital number, since it uses as much as digits as its factorization.

12620337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4206782.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 12620337 is about 3552.5113652176. The cubic root of 12620337 is about 232.8218043547.

Adding to 12620337 its reverse (73302621), we get a palindrome (85922958).

The spelling of 12620337 in words is "twelve million, six hundred twenty thousand, three hundred thirty-seven".