13204247 has 8 divisors (see below), whose sum is σ = 15168000. Its totient is φ = 11259864.

The previous prime is 13204241. The next prime is 13204249. The reversal of 13204247 is 74240231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13204247 - 2⁸ = 13203991 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 (13204241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3347 + ... + 6132.

It is an arithmetic number, because the mean of its divisors is an integer number (1896000).

Almost surely, 2^13204247 is an apocalyptic number.

13204247 is a deficient number, since it is larger than the sum of its proper divisors (1963753).

13204247 is an equidigital number, since it uses as much as digits as its factorization.

13204247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9685.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 13204247 is about 3633.7648520508. The cubic root of 13204247 is about 236.3584935092.

Adding to 13204247 its reverse (74240231), we get a palindrome (87444478).

The spelling of 13204247 in words is "thirteen million, two hundred four thousand, two hundred forty-seven".