13289756 has 6 divisors (see below), whose sum is σ = 23257080. Its totient is φ = 6644876.

The previous prime is 13289741. The next prime is 13289761. The reversal of 13289756 is 65798231.

It is a super-2 number, since 2×13289756² = 353235229079072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1661216 + ... + 1661223.

It is an arithmetic number, because the mean of its divisors is an integer number (3876180).

Almost surely, 2^13289756 is an apocalyptic number.

It is an amenable number.

13289756 is a deficient number, since it is larger than the sum of its proper divisors (9967324).

13289756 is a wasteful number, since it uses less digits than its factorization.

13289756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322443 (or 3322441 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 13289756 is about 3645.5117610563. The cubic root of 13289756 is about 236.8676051418.

The spelling of 13289756 in words is "thirteen million, two hundred eighty-nine thousand, seven hundred fifty-six".