20232647 has 2 divisors, whose sum is σ = 20232648. Its totient is φ = 20232646.

The previous prime is 20232629. The next prime is 20232659. The reversal of 20232647 is 74623202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20232647 - 2⁸ = 20232391 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 (20232347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10116323 + 10116324.

It is an arithmetic number, because the mean of its divisors is an integer number (10116324).

Almost surely, 2^20232647 is an apocalyptic number.

20232647 is a deficient number, since it is larger than the sum of its proper divisors (1).

20232647 is an equidigital number, since it uses as much as digits as its factorization.

20232647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 20232647 is about 4498.0714756438. The cubic root of 20232647 is about 272.4902086654.

Adding to 20232647 its reverse (74623202), we get a palindrome (94855849).

The spelling of 20232647 in words is "twenty million, two hundred thirty-two thousand, six hundred forty-seven".