12646630 has 8 divisors (see below), whose sum is σ = 22763952. Its totient is φ = 5058648.

The previous prime is 12646597. The next prime is 12646661. The reversal of 12646630 is 3664621.

12646630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 632322 + ... + 632341.

It is an arithmetic number, because the mean of its divisors is an integer number (2845494).

Almost surely, 2^12646630 is an apocalyptic number.

12646630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12646630 is a deficient number, since it is larger than the sum of its proper divisors (10117322).

12646630 is a wasteful number, since it uses less digits than its factorization.

12646630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264670.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 12646630 is about 3556.2100612872. The cubic root of 12646630 is about 232.9833778904.

Subtracting from 12646630 its reverse (3664621), we obtain a square (8982009 = 2997²).

The spelling of 12646630 in words is "twelve million, six hundred forty-six thousand, six hundred thirty".