20546963 has 2 divisors, whose sum is σ = 20546964. Its totient is φ = 20546962.

The previous prime is 20546959. The next prime is 20546971. The reversal of 20546963 is 36964502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20546963 - 2² = 20546959 is a prime.

It is not a weakly prime, because it can be changed into another prime (20546983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10273481 + 10273482.

It is an arithmetic number, because the mean of its divisors is an integer number (10273482).

Almost surely, 2^20546963 is an apocalyptic number.

20546963 is a deficient number, since it is larger than the sum of its proper divisors (1).

20546963 is an equidigital number, since it uses as much as digits as its factorization.

20546963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 20546963 is about 4532.8757979896. The cubic root of 20546963 is about 273.8940174767.

The spelling of 20546963 in words is "twenty million, five hundred forty-six thousand, nine hundred sixty-three".