20384753 has 2 divisors, whose sum is σ = 20384754. Its totient is φ = 20384752.

The previous prime is 20384747. The next prime is 20384789. The reversal of 20384753 is 35748302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11336689 + 9048064 = 3367^2 + 3008^2 .

It is a cyclic number.

It is not a de Polignac number, because 20384753 - 2⁴ = 20384737 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20384953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10192376 + 10192377.

It is an arithmetic number, because the mean of its divisors is an integer number (10192377).

Almost surely, 2^20384753 is an apocalyptic number.

It is an amenable number.

20384753 is a deficient number, since it is larger than the sum of its proper divisors (1).

20384753 is an equidigital number, since it uses as much as digits as its factorization.

20384753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 20384753 is about 4514.9477294870. The cubic root of 20384753 is about 273.1713514116.

The spelling of 20384753 in words is "twenty million, three hundred eighty-four thousand, seven hundred fifty-three".