899999963 has 2 divisors, whose sum is σ = 899999964. Its totient is φ = 899999962.

The previous prime is 899999929. The next prime is 900000011. The reversal of 899999963 is 369999998.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 899999963 - 2²⁰ = 898951387 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (899996963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449999981 + 449999982.

It is an arithmetic number, because the mean of its divisors is an integer number (449999982).

Almost surely, 2^899999963 is an apocalyptic number.

899999963 is a deficient number, since it is larger than the sum of its proper divisors (1).

899999963 is an equidigital number, since it uses as much as digits as its factorization.

899999963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 76527504, while the sum is 71.

The square root of 899999963 is about 29999.9993833333. Note that the first 3 decimals coincide. The cubic root of 899999963 is about 965.4893713748.

The spelling of 899999963 in words is "eight hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred sixty-three".