999802163 has 2 divisors, whose sum is σ = 999802164. Its totient is φ = 999802162.

The previous prime is 999802121. The next prime is 999802169. The reversal of 999802163 is 361208999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999802163 - 2⁶ = 999802099 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (999802169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499901081 + 499901082.

It is an arithmetic number, because the mean of its divisors is an integer number (499901082).

Almost surely, 2^999802163 is an apocalyptic number.

999802163 is a deficient number, since it is larger than the sum of its proper divisors (1).

999802163 is an equidigital number, since it uses as much as digits as its factorization.

999802163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 999802163 is about 31619.6483693288. The cubic root of 999802163 is about 999.9340499840.

The spelling of 999802163 in words is "nine hundred ninety-nine million, eight hundred two thousand, one hundred sixty-three".