13289881 has 8 divisors (see below), whose sum is σ = 14835744. Its totient is φ = 11800320.

The previous prime is 13289839. The next prime is 13289923. The reversal of 13289881 is 18898231.

13289881 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13289839) and next prime (13289923).

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

It is a cyclic number.

It is not a de Polignac number, because 13289881 - 2¹³ = 13281689 is a prime.

It is a super-2 number, since 2×13289881² = 353241873988322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13289831) 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, 13576 + ... + 14521.

It is an arithmetic number, because the mean of its divisors is an integer number (1854468).

Almost surely, 2^13289881 is an apocalyptic number.

13289881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13289881 is a deficient number, since it is larger than the sum of its proper divisors (1545863).

13289881 is a wasteful number, since it uses less digits than its factorization.

13289881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28151.

The product of its digits is 27648, while the sum is 40.

The square root of 13289881 is about 3645.5289053853. The cubic root of 13289881 is about 236.8683477779.

The spelling of 13289881 in words is "thirteen million, two hundred eighty-nine thousand, eight hundred eighty-one".