12617628 has 12 divisors (see below), whose sum is σ = 29441160. Its totient is φ = 4205872.

The previous prime is 12617609. The next prime is 12617659. The reversal of 12617628 is 82671621.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

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, 525723 + ... + 525746.

It is an arithmetic number, because the mean of its divisors is an integer number (2453430).

Almost surely, 2^12617628 is an apocalyptic number.

It is an amenable number.

12617628 is an abundant number, since it is smaller than the sum of its proper divisors (16823532).

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

12617628 is a wasteful number, since it uses less digits than its factorization.

12617628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051476 (or 1051474 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 12617628 is about 3552.1300651862. The cubic root of 12617628 is about 232.8051444878.

The spelling of 12617628 in words is "twelve million, six hundred seventeen thousand, six hundred twenty-eight".