20850463 has 2 divisors, whose sum is σ = 20850464. Its totient is φ = 20850462.

The previous prime is 20850461. The next prime is 20850491. The reversal of 20850463 is 36405802.

It is an a-pointer prime, because the next prime (20850491) can be obtained adding 20850463 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20850463 - 2¹ = 20850461 is a prime.

Together with 20850461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20850461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10425231 + 10425232.

It is an arithmetic number, because the mean of its divisors is an integer number (10425232).

Almost surely, 2^20850463 is an apocalyptic number.

20850463 is a deficient number, since it is larger than the sum of its proper divisors (1).

20850463 is an equidigital number, since it uses as much as digits as its factorization.

20850463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 20850463 is about 4566.2307212842. The cubic root of 20850463 is about 275.2359979656.

The spelling of 20850463 in words is "twenty million, eight hundred fifty thousand, four hundred sixty-three".