13280869 has 8 divisors (see below), whose sum is σ = 15701760. Its totient is φ = 10990896.

The previous prime is 13280863. The next prime is 13280873. The reversal of 13280869 is 96808231.

13280869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13280869 - 2¹¹ = 13278821 is a prime.

It is a super-2 number, since 2×13280869² = 352762962790322, which contains 22 as substring.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13280863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32509 + ... + 32914.

It is an arithmetic number, because the mean of its divisors is an integer number (1962720).

Almost surely, 2^13280869 is an apocalyptic number.

It is an amenable number.

13280869 is a deficient number, since it is larger than the sum of its proper divisors (2420891).

13280869 is an equidigital number, since it uses as much as digits as its factorization.

13280869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65459.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 13280869 is about 3644.2926611347. The cubic root of 13280869 is about 236.8147947465.

The spelling of 13280869 in words is "thirteen million, two hundred eighty thousand, eight hundred sixty-nine".