13986433 has 4 divisors (see below), whose sum is σ = 13994820. Its totient is φ = 13978048.

The previous prime is 13986431. The next prime is 13986437. The reversal of 13986433 is 33468931.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 33468931 = 61 ⋅548671.

It can be written as a sum of positive squares in 2 ways, for example, as 4787344 + 9199089 = 2188^2 + 3033^2 .

It is a cyclic number.

It is not a de Polignac number, because 13986433 - 2¹ = 13986431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13986392 and 13986401.

It is not an unprimeable number, because it can be changed into a prime (13986431) 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 3 ways as a sum of consecutive naturals, for example, 748 + ... + 5341.

It is an arithmetic number, because the mean of its divisors is an integer number (3498705).

Almost surely, 2^13986433 is an apocalyptic number.

It is an amenable number.

13986433 is a deficient number, since it is larger than the sum of its proper divisors (8387).

13986433 is an equidigital number, since it uses as much as digits as its factorization.

13986433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8386.

The product of its digits is 46656, while the sum is 37.

The square root of 13986433 is about 3739.8439807029. The cubic root of 13986433 is about 240.9363479219.

The spelling of 13986433 in words is "thirteen million, nine hundred eighty-six thousand, four hundred thirty-three".