13986829 has 4 divisors (see below), whose sum is σ = 14594976. Its totient is φ = 13378684.

The previous prime is 13986823. The next prime is 13986887. The reversal of 13986829 is 92868931.

13986829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92868931 = 1093 ⋅84967.

It is a cyclic number.

It is not a de Polignac number, because 13986829 - 2¹⁷ = 13855757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13986823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304039 + ... + 304084.

It is an arithmetic number, because the mean of its divisors is an integer number (3648744).

Almost surely, 2^13986829 is an apocalyptic number.

It is an amenable number.

13986829 is a deficient number, since it is larger than the sum of its proper divisors (608147).

13986829 is an equidigital number, since it uses as much as digits as its factorization.

13986829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608146.

The product of its digits is 186624, while the sum is 46.

The square root of 13986829 is about 3739.8969237133. The cubic root of 13986829 is about 240.9386217896.

It can be divided in two parts, 139 and 86829, that added together give a palindrome (86968).

The spelling of 13986829 in words is "thirteen million, nine hundred eighty-six thousand, eight hundred twenty-nine".