84881963 has 2 divisors, whose sum is σ = 84881964. Its totient is φ = 84881962.

The previous prime is 84881921. The next prime is 84881989. The reversal of 84881963 is 36918848.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84881963 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (84881903) 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, 42440981 + 42440982.

It is an arithmetic number, because the mean of its divisors is an integer number (42440982).

Almost surely, 2^84881963 is an apocalyptic number.

84881963 is a deficient number, since it is larger than the sum of its proper divisors (1).

84881963 is an equidigital number, since it uses as much as digits as its factorization.

84881963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 47.

The square root of 84881963 is about 9213.1407782580. The cubic root of 84881963 is about 439.4793479985.

The spelling of 84881963 in words is "eighty-four million, eight hundred eighty-one thousand, nine hundred sixty-three".