13628655 has 28 divisors (see below), whose sum is σ = 24526920. Its totient is φ = 7266672.

The previous prime is 13628653. The next prime is 13628707. The reversal of 13628655 is 55682631.

It is not a de Polignac number, because 13628655 - 2¹ = 13628653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13628653) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1776 + ... + 5514.

Almost surely, 2^13628655 is an apocalyptic number.

13628655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13628655 is a deficient number, since it is larger than the sum of its proper divisors (10898265).

13628655 is an frugal number, since it uses more digits than its factorization.

13628655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3762 (or 3747 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 13628655 is about 3691.7008275319. The cubic root of 13628655 is about 238.8641642180.

The spelling of 13628655 in words is "thirteen million, six hundred twenty-eight thousand, six hundred fifty-five".