20460663 has 12 divisors (see below), whose sum is σ = 31110040. Its totient is φ = 12922416.

The previous prime is 20460653. The next prime is 20460677. The reversal of 20460663 is 36606402.

It is not a de Polignac number, because 20460663 - 2⁹ = 20460151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20460613) 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 in 11 ways as a sum of consecutive naturals, for example, 59656 + ... + 59997.

Almost surely, 2^20460663 is an apocalyptic number.

20460663 is a deficient number, since it is larger than the sum of its proper divisors (10649377).

20460663 is a wasteful number, since it uses less digits than its factorization.

20460663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119678 (or 119675 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 20460663 is about 4523.3464382026. The cubic root of 20460663 is about 273.5100154861.

The spelling of 20460663 in words is "twenty million, four hundred sixty thousand, six hundred sixty-three".