20327963 has 2 divisors, whose sum is σ = 20327964. Its totient is φ = 20327962.

The previous prime is 20327959. The next prime is 20327969. The reversal of 20327963 is 36972302.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20327963 - 2² = 20327959 is a prime.

It is a super-3 number, since 3×20327963³ (a number of 23 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (20327969) 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, 10163981 + 10163982.

It is an arithmetic number, because the mean of its divisors is an integer number (10163982).

Almost surely, 2^20327963 is an apocalyptic number.

20327963 is a deficient number, since it is larger than the sum of its proper divisors (1).

20327963 is an equidigital number, since it uses as much as digits as its factorization.

20327963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 20327963 is about 4508.6542338041. The cubic root of 20327963 is about 272.9174389298.

The spelling of 20327963 in words is "twenty million, three hundred twenty-seven thousand, nine hundred sixty-three".