13238837 has 4 divisors (see below), whose sum is σ = 13273260. Its totient is φ = 13204416.

The previous prime is 13238831. The next prime is 13238857. The reversal of 13238837 is 73883231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73883231 = 953 ⋅77527.

It can be written as a sum of positive squares in 2 ways, for example, as 6195121 + 7043716 = 2489^2 + 2654^2 .

It is a cyclic number.

It is not a de Polignac number, because 13238837 - 2¹⁴ = 13222453 is a prime.

It is a super-2 number, since 2×13238837² = 350533610225138, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13238797 and 13238806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13238831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16628 + ... + 17405.

It is an arithmetic number, because the mean of its divisors is an integer number (3318315).

Almost surely, 2^13238837 is an apocalyptic number.

It is an amenable number.

13238837 is a deficient number, since it is larger than the sum of its proper divisors (34423).

13238837 is an equidigital number, since it uses as much as digits as its factorization.

13238837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34422.

The product of its digits is 24192, while the sum is 35.

The square root of 13238837 is about 3638.5212655693. The cubic root of 13238837 is about 236.5647027100.

The spelling of 13238837 in words is "thirteen million, two hundred thirty-eight thousand, eight hundred thirty-seven".