20026847 has 2 divisors, whose sum is σ = 20026848. Its totient is φ = 20026846.

The previous prime is 20026829. The next prime is 20026861. The reversal of 20026847 is 74862002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20026847 - 2¹⁰ = 20025823 is a prime.

It is a super-2 number, since 2×20026847² = 802149201522818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20023847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10013423 + 10013424.

It is an arithmetic number, because the mean of its divisors is an integer number (10013424).

Almost surely, 2^20026847 is an apocalyptic number.

20026847 is a deficient number, since it is larger than the sum of its proper divisors (1).

20026847 is an equidigital number, since it uses as much as digits as its factorization.

20026847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 20026847 is about 4475.1365342300. The cubic root of 20026847 is about 271.5631639705.

Adding to 20026847 its reverse (74862002), we get a palindrome (94888849).

The spelling of 20026847 in words is "twenty million, twenty-six thousand, eight hundred forty-seven".