12620307 has 64 divisors (see below), whose sum is σ = 22394880. Its totient is φ = 6150144.

The previous prime is 12620297. The next prime is 12620323. The reversal of 12620307 is 70302621.

It is a happy number.

It is not a de Polignac number, because 12620307 - 2⁶ = 12620243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (12620207) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 238093 + ... + 238145.

It is an arithmetic number, because the mean of its divisors is an integer number (349920).

Almost surely, 2^12620307 is an apocalyptic number.

12620307 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12620307 is a deficient number, since it is larger than the sum of its proper divisors (9774573).

12620307 is a wasteful number, since it uses less digits than its factorization.

12620307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 12620307 is about 3552.5071428500. The cubic root of 12620307 is about 232.8216198731.

Adding to 12620307 its reverse (70302621), we get a palindrome (82922928).

The spelling of 12620307 in words is "twelve million, six hundred twenty thousand, three hundred seven".