13628297 has 4 divisors (see below), whose sum is σ = 13815060. Its totient is φ = 13441536.

The previous prime is 13628287. The next prime is 13628299. The reversal of 13628297 is 79282631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79282631 = 379 ⋅209189.

It can be written as a sum of positive squares in 2 ways, for example, as 6071296 + 7557001 = 2464^2 + 2749^2 .

It is a cyclic number.

It is not a de Polignac number, because 13628297 - 2⁴ = 13628281 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13628297.

It is not an unprimeable number, because it can be changed into a prime (13628299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93272 + ... + 93417.

It is an arithmetic number, because the mean of its divisors is an integer number (3453765).

Almost surely, 2^13628297 is an apocalyptic number.

It is an amenable number.

13628297 is a deficient number, since it is larger than the sum of its proper divisors (186763).

13628297 is an equidigital number, since it uses as much as digits as its factorization.

13628297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186762.

The product of its digits is 36288, while the sum is 38.

The square root of 13628297 is about 3691.6523400775. The cubic root of 13628297 is about 238.8620726905.

The spelling of 13628297 in words is "thirteen million, six hundred twenty-eight thousand, two hundred ninety-seven".