13759681 has 16 divisors (see below), whose sum is σ = 16377984. Its totient is φ = 11430144.

The previous prime is 13759679. The next prime is 13759687. The reversal of 13759681 is 18695731.

13759681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13759681 - 2¹ = 13759679 is a prime.

It is a super-2 number, since 2×13759681² = 378657642443522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13759687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3730 + ... + 6436.

It is an arithmetic number, because the mean of its divisors is an integer number (1023624).

Almost surely, 2^13759681 is an apocalyptic number.

It is an amenable number.

13759681 is a deficient number, since it is larger than the sum of its proper divisors (2618303).

13759681 is a wasteful number, since it uses less digits than its factorization.

13759681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2760.

The product of its digits is 45360, while the sum is 40.

The square root of 13759681 is about 3709.4043996308. The cubic root of 13759681 is about 239.6272047969.

The spelling of 13759681 in words is "thirteen million, seven hundred fifty-nine thousand, six hundred eighty-one".