13628275 has 6 divisors (see below), whose sum is σ = 16899092. Its totient is φ = 10902600.

The previous prime is 13628273. The next prime is 13628281. The reversal of 13628275 is 57282631.

It is a happy number.

It is not a de Polignac number, because 13628275 - 2¹ = 13628273 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 13628275.

It is not an unprimeable number, because it can be changed into a prime (13628273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 272541 + ... + 272590.

Almost surely, 2^13628275 is an apocalyptic number.

13628275 is a deficient number, since it is larger than the sum of its proper divisors (3270817).

13628275 is an equidigital number, since it uses as much as digits as its factorization.

13628275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545141 (or 545136 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 13628275 is about 3691.6493603808. The cubic root of 13628275 is about 238.8619441597.

The spelling of 13628275 in words is "thirteen million, six hundred twenty-eight thousand, two hundred seventy-five".