20020463 has 2 divisors, whose sum is σ = 20020464. Its totient is φ = 20020462.

The previous prime is 20020457. The next prime is 20020487. The reversal of 20020463 is 36402002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20020463 - 2⁴ = 20020447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20020453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010231 + 10010232.

It is an arithmetic number, because the mean of its divisors is an integer number (10010232).

Almost surely, 2^20020463 is an apocalyptic number.

20020463 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020463 is an equidigital number, since it uses as much as digits as its factorization.

20020463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 20020463 is about 4474.4232030509. The cubic root of 20020463 is about 271.5343053175.

Adding to 20020463 its reverse (36402002), we get a palindrome (56422465).

The spelling of 20020463 in words is "twenty million, twenty thousand, four hundred sixty-three".