13961338 has 4 divisors (see below), whose sum is σ = 20942010. Its totient is φ = 6980668.

The previous prime is 13961329. The next prime is 13961357. The reversal of 13961338 is 83316931.

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

It can be written as a sum of positive squares in only one way, i.e., 10131489 + 3829849 = 3183^2 + 1957^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3490333 + ... + 3490336.

Almost surely, 2^13961338 is an apocalyptic number.

13961338 is a deficient number, since it is larger than the sum of its proper divisors (6980672).

13961338 is an equidigital number, since it uses as much as digits as its factorization.

13961338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6980671.

The product of its digits is 11664, while the sum is 34.

The square root of 13961338 is about 3736.4873879086. The cubic root of 13961338 is about 240.7921625430.

The spelling of 13961338 in words is "thirteen million, nine hundred sixty-one thousand, three hundred thirty-eight".