13326247 has 4 divisors (see below), whose sum is σ = 14537736. Its totient is φ = 12114760.

The previous prime is 13326217. The next prime is 13326251. The reversal of 13326247 is 74262331.

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

It is a cyclic number.

It is not a de Polignac number, because 13326247 - 2⁷ = 13326119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13326217) 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, 605728 + ... + 605749.

It is an arithmetic number, because the mean of its divisors is an integer number (3634434).

Almost surely, 2^13326247 is an apocalyptic number.

13326247 is a deficient number, since it is larger than the sum of its proper divisors (1211489).

13326247 is a wasteful number, since it uses less digits than its factorization.

13326247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211488.

The product of its digits is 6048, while the sum is 28.

The square root of 13326247 is about 3650.5132515853. The cubic root of 13326247 is about 237.0842039689.

Adding to 13326247 its reverse (74262331), we get a palindrome (87588578).

The spelling of 13326247 in words is "thirteen million, three hundred twenty-six thousand, two hundred forty-seven".