899706805 has 16 divisors (see below), whose sum is σ = 1089184320. Its totient is φ = 713435392.

The previous prime is 899706799. The next prime is 899706839. The reversal of 899706805 is 508607998.

It is a cyclic number.

It is not a de Polignac number, because 899706805 - 2¹⁵ = 899674037 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 309117 + ... + 312013.

It is an arithmetic number, because the mean of its divisors is an integer number (68074020).

Almost surely, 2^899706805 is an apocalyptic number.

It is an amenable number.

899706805 is a deficient number, since it is larger than the sum of its proper divisors (189477515).

899706805 is a wasteful number, since it uses less digits than its factorization.

899706805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3428.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The square root of 899706805 is about 29995.1130186236. The cubic root of 899706805 is about 965.3845300111.

The spelling of 899706805 in words is "eight hundred ninety-nine million, seven hundred six thousand, eight hundred five".