13289938 has 4 divisors (see below), whose sum is σ = 19934910. Its totient is φ = 6644968.

The previous prime is 13289923. The next prime is 13289957. The reversal of 13289938 is 83998231.

It is a happy number.

13289938 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 an emirpimes, since its reverse is a distinct semiprime: 83998231 = 23 ⋅3652097.

It can be written as a sum of positive squares in only one way, i.e., 11539609 + 1750329 = 3397^2 + 1323^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13289894 and 13289903.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3322483 + ... + 3322486.

Almost surely, 2^13289938 is an apocalyptic number.

13289938 is a deficient number, since it is larger than the sum of its proper divisors (6644972).

13289938 is an equidigital number, since it uses as much as digits as its factorization.

13289938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6644971.

The product of its digits is 93312, while the sum is 43.

The square root of 13289938 is about 3645.5367231726. The cubic root of 13289938 is about 236.8686864184.

The spelling of 13289938 in words is "thirteen million, two hundred eighty-nine thousand, nine hundred thirty-eight".