20338847 has 2 divisors, whose sum is σ = 20338848. Its totient is φ = 20338846.

The previous prime is 20338841. The next prime is 20338853. The reversal of 20338847 is 74883302.

It is a balanced prime because it is at equal distance from previous prime (20338841) and next prime (20338853).

It is a cyclic number.

It is not a de Polignac number, because 20338847 - 2¹⁸ = 20076703 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20338841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10169423 + 10169424.

It is an arithmetic number, because the mean of its divisors is an integer number (10169424).

Almost surely, 2^20338847 is an apocalyptic number.

20338847 is a deficient number, since it is larger than the sum of its proper divisors (1).

20338847 is an equidigital number, since it uses as much as digits as its factorization.

20338847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 20338847 is about 4509.8610843351. The cubic root of 20338847 is about 272.9661387334.

The spelling of 20338847 in words is "twenty million, three hundred thirty-eight thousand, eight hundred forty-seven".