12620670 has 32 divisors (see below), whose sum is σ = 30608928. Its totient is φ = 3330048.

The previous prime is 12620653. The next prime is 12620677. The reversal of 12620670 is 7602621.

It is a happy number.

12620670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12620670² = 318562622497800, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12620670.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12620677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 742 + ... + 5078.

It is an arithmetic number, because the mean of its divisors is an integer number (956529).

Almost surely, 2^12620670 is an apocalyptic number.

12620670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12620670 is an abundant number, since it is smaller than the sum of its proper divisors (17988258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12620670 is a wasteful number, since it uses less digits than its factorization.

12620670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4444.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 12620670 is about 3552.5582331610. The cubic root of 12620670 is about 232.8238520807.

The spelling of 12620670 in words is "twelve million, six hundred twenty thousand, six hundred seventy".