20466463 has 2 divisors, whose sum is σ = 20466464. Its totient is φ = 20466462.

The previous prime is 20466461. The next prime is 20466469. The reversal of 20466463 is 36466402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20466463 - 2¹ = 20466461 is a prime.

It is a super-3 number, since 3×20466463³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 20466461, 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 (20466461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10233231 + 10233232.

It is an arithmetic number, because the mean of its divisors is an integer number (10233232).

Almost surely, 2^20466463 is an apocalyptic number.

20466463 is a deficient number, since it is larger than the sum of its proper divisors (1).

20466463 is an equidigital number, since it uses as much as digits as its factorization.

20466463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 20466463 is about 4523.9875110349. The cubic root of 20466463 is about 273.5358570765.

The spelling of 20466463 in words is "twenty million, four hundred sixty-six thousand, four hundred sixty-three".