13799731 has 8 divisors (see below), whose sum is σ = 15204528. Its totient is φ = 12420000.

The previous prime is 13799713. The next prime is 13799741.

It is a happy number.

13799731 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13799731 is a prime.

It is a super-2 number, since 2×13799731² = 380865151344722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13799741) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 5100 + ... + 7321.

It is an arithmetic number, because the mean of its divisors is an integer number (1900566).

Almost surely, 2^13799731 is an apocalyptic number.

13799731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13799731 is a deficient number, since it is larger than the sum of its proper divisors (1404797).

13799731 is a wasteful number, since it uses less digits than its factorization.

13799731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12533.

The product of its digits is 35721, while the sum is 40.

The square root of 13799731 is about 3714.7989178420. The cubic root of 13799731 is about 239.8594721305.

The spelling of 13799731 in words is "thirteen million, seven hundred ninety-nine thousand, seven hundred thirty-one".