13972369 has 2 divisors, whose sum is σ = 13972370. Its totient is φ = 13972368.

The previous prime is 13972367. The next prime is 13972373. The reversal of 13972369 is 96327931.

13972369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13140625 + 831744 = 3625^2 + 912^2 .

It is a cyclic number.

It is not a de Polignac number, because 13972369 - 2¹ = 13972367 is a prime.

It is a super-2 number, since 2×13972369² = 390454190944322, which contains 22 as substring.

Together with 13972367, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13972363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6986184 + 6986185.

It is an arithmetic number, because the mean of its divisors is an integer number (6986185).

Almost surely, 2^13972369 is an apocalyptic number.

It is an amenable number.

13972369 is a deficient number, since it is larger than the sum of its proper divisors (1).

13972369 is an equidigital number, since it uses as much as digits as its factorization.

13972369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 40.

The square root of 13972369 is about 3737.9632154423. The cubic root of 13972369 is about 240.8555633215.

It can be divided in two parts, 13972 and 369, that added together give a palindrome (14341).

The spelling of 13972369 in words is "thirteen million, nine hundred seventy-two thousand, three hundred sixty-nine".