13089776 has 40 divisors (see below), whose sum is σ = 29399904. Its totient is φ = 5529600.

The previous prime is 13089767. The next prime is 13089787. The reversal of 13089776 is 67798031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7376 + ... + 8976.

Almost surely, 2^13089776 is an apocalyptic number.

13089776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13089776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14699952).

13089776 is an abundant number, since it is smaller than the sum of its proper divisors (16310128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13089776 is a wasteful number, since it uses less digits than its factorization.

13089776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689 (or 1683 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 13089776 is about 3617.9795466531. The cubic root of 13089776 is about 235.6734927527.

The spelling of 13089776 in words is "thirteen million, eighty-nine thousand, seven hundred seventy-six".