899808667 has 2 divisors, whose sum is σ = 899808668. Its totient is φ = 899808666.

The previous prime is 899808659. The next prime is 899808671. The reversal of 899808667 is 766808998.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 899808667 - 2³ = 899808659 is a prime.

It is not a weakly prime, because it can be changed into another prime (899808677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449904333 + 449904334.

It is an arithmetic number, because the mean of its divisors is an integer number (449904334).

Almost surely, 2^899808667 is an apocalyptic number.

899808667 is a deficient number, since it is larger than the sum of its proper divisors (1).

899808667 is an equidigital number, since it uses as much as digits as its factorization.

899808667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10450944, while the sum is 61.

The square root of 899808667 is about 29996.8109471657. The cubic root of 899808667 is about 965.4209612454.

The spelling of 899808667 in words is "eight hundred ninety-nine million, eight hundred eight thousand, six hundred sixty-seven".