894969563 has 2 divisors, whose sum is σ = 894969564. Its totient is φ = 894969562.

The previous prime is 894969553. The next prime is 894969617. The reversal of 894969563 is 365969498.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 894969563 - 2⁴ = 894969547 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (894969553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447484781 + 447484782.

It is an arithmetic number, because the mean of its divisors is an integer number (447484782).

Almost surely, 2^894969563 is an apocalyptic number.

894969563 is a deficient number, since it is larger than the sum of its proper divisors (1).

894969563 is an equidigital number, since it uses as much as digits as its factorization.

894969563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12597120, while the sum is 59.

The square root of 894969563 is about 29916.0419006258. The cubic root of 894969563 is about 963.6871954892.

The spelling of 894969563 in words is "eight hundred ninety-four million, nine hundred sixty-nine thousand, five hundred sixty-three".