13982237 has 4 divisors (see below), whose sum is σ = 14211516. Its totient is φ = 13752960.

The previous prime is 13982231. The next prime is 13982327. The reversal of 13982237 is 73228931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73228931 = 263 ⋅278437.

It can be written as a sum of positive squares in 2 ways, for example, as 395641 + 13586596 = 629^2 + 3686^2 .

It is a cyclic number.

It is not a de Polignac number, because 13982237 - 2⁶ = 13982173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13982197 and 13982206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13982231) 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, 114548 + ... + 114669.

It is an arithmetic number, because the mean of its divisors is an integer number (3552879).

Almost surely, 2^13982237 is an apocalyptic number.

It is an amenable number.

13982237 is a deficient number, since it is larger than the sum of its proper divisors (229279).

13982237 is an equidigital number, since it uses as much as digits as its factorization.

13982237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229278.

The product of its digits is 18144, while the sum is 35.

The square root of 13982237 is about 3739.2829526528. The cubic root of 13982237 is about 240.9122514748.

The spelling of 13982237 in words is "thirteen million, nine hundred eighty-two thousand, two hundred thirty-seven".