20324771 has 2 divisors, whose sum is σ = 20324772. Its totient is φ = 20324770.

The previous prime is 20324753. The next prime is 20324789. The reversal of 20324771 is 17742302.

It is a balanced prime because it is at equal distance from previous prime (20324753) and next prime (20324789).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20324771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20324771.

It is not a weakly prime, because it can be changed into another prime (20326771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10162385 + 10162386.

It is an arithmetic number, because the mean of its divisors is an integer number (10162386).

Almost surely, 2^20324771 is an apocalyptic number.

20324771 is a deficient number, since it is larger than the sum of its proper divisors (1).

20324771 is an equidigital number, since it uses as much as digits as its factorization.

20324771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 20324771 is about 4508.3002340128. The cubic root of 20324771 is about 272.9031532212.

The spelling of 20324771 in words is "twenty million, three hundred twenty-four thousand, seven hundred seventy-one".