13006437 has 4 divisors (see below), whose sum is σ = 17341920. Its totient is φ = 8670956.

The previous prime is 13006423. The next prime is 13006447. The reversal of 13006437 is 73460031.

13006437 is digitally balanced in base 3, 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73460031 = 3 ⋅24486677.

It is a cyclic number.

It is not a de Polignac number, because 13006437 - 2⁴ = 13006421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13006447) 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, 2167737 + ... + 2167742.

It is an arithmetic number, because the mean of its divisors is an integer number (4335480).

Almost surely, 2^13006437 is an apocalyptic number.

It is an amenable number.

13006437 is a deficient number, since it is larger than the sum of its proper divisors (4335483).

13006437 is an equidigital number, since it uses as much as digits as its factorization.

13006437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4335482.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 13006437 is about 3606.4438162822. The cubic root of 13006437 is about 235.1722714488.

Adding to 13006437 its reverse (73460031), we get a palindrome (86466468).

The spelling of 13006437 in words is "thirteen million, six thousand, four hundred thirty-seven".