13424247 has 6 divisors (see below), whose sum is σ = 19390592. Its totient is φ = 8949492.

The previous prime is 13424231. The next prime is 13424263. The reversal of 13424247 is 74242431.

It is an interprime number because it is at equal distance from previous prime (13424231) and next prime (13424263).

It is not a de Polignac number, because 13424247 - 2⁴ = 13424231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13424247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13424297) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 745783 + ... + 745800.

Almost surely, 2^13424247 is an apocalyptic number.

13424247 is a deficient number, since it is larger than the sum of its proper divisors (5966345).

13424247 is a wasteful number, since it uses less digits than its factorization.

13424247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491589 (or 1491586 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 13424247 is about 3663.9114345191. The cubic root of 13424247 is about 237.6639503235.

Adding to 13424247 its reverse (74242431), we get a palindrome (87666678).

It can be divided in two parts, 1342424 and 7, that added together give a palindrome (1342431).

The spelling of 13424247 in words is "thirteen million, four hundred twenty-four thousand, two hundred forty-seven".