13798643 has 4 divisors (see below), whose sum is σ = 14398608. Its totient is φ = 13198680.

The previous prime is 13798639. The next prime is 13798651. The reversal of 13798643 is 34689731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13798643 - 2² = 13798639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13798643.

It is not an unprimeable number, because it can be changed into a prime (13798663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299948 + ... + 299993.

It is an arithmetic number, because the mean of its divisors is an integer number (3599652).

Almost surely, 2^13798643 is an apocalyptic number.

13798643 is a deficient number, since it is larger than the sum of its proper divisors (599965).

13798643 is an equidigital number, since it uses as much as digits as its factorization.

13798643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599964.

The product of its digits is 108864, while the sum is 41.

The square root of 13798643 is about 3714.6524736508. The cubic root of 13798643 is about 239.8531682887.

It can be divided in two parts, 13798 and 643, that added together give a palindrome (14441).

The spelling of 13798643 in words is "thirteen million, seven hundred ninety-eight thousand, six hundred forty-three".