21482963 has 2 divisors, whose sum is σ = 21482964. Its totient is φ = 21482962.

The previous prime is 21482959. The next prime is 21482987. The reversal of 21482963 is 36928412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21482963 - 2² = 21482959 is a prime.

It is not a weakly prime, because it can be changed into another prime (21482063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10741481 + 10741482.

It is an arithmetic number, because the mean of its divisors is an integer number (10741482).

Almost surely, 2^21482963 is an apocalyptic number.

21482963 is a deficient number, since it is larger than the sum of its proper divisors (1).

21482963 is an equidigital number, since it uses as much as digits as its factorization.

21482963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 21482963 is about 4634.9717366992. The cubic root of 21482963 is about 277.9914209867.

The spelling of 21482963 in words is "twenty-one million, four hundred eighty-two thousand, nine hundred sixty-three".