13028685 has 32 divisors (see below), whose sum is σ = 21962880. Its totient is φ = 6585600.

The previous prime is 13028671. The next prime is 13028689. The reversal of 13028685 is 58682031.

It is a happy number.

It is not a de Polignac number, because 13028685 - 2⁹ = 13028173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13028689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26290 + ... + 26780.

It is an arithmetic number, because the mean of its divisors is an integer number (686340).

Almost surely, 2^13028685 is an apocalyptic number.

13028685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13028685 is a deficient number, since it is larger than the sum of its proper divisors (8934195).

13028685 is a wasteful number, since it uses less digits than its factorization.

13028685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 13028685 is about 3609.5269773199. The cubic root of 13028685 is about 235.3062854063.

The spelling of 13028685 in words is "thirteen million, twenty-eight thousand, six hundred eighty-five".