834895985 has 32 divisors (see below), whose sum is σ = 1256097024. Its totient is φ = 517536000.

The previous prime is 834895969. The next prime is 834896003. The reversal of 834895985 is 589598438.

It is not a de Polignac number, because 834895985 - 2⁴ = 834895969 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63695 + ... + 75675.

It is an arithmetic number, because the mean of its divisors is an integer number (39253032).

Almost surely, 2^834895985 is an apocalyptic number.

It is an amenable number.

834895985 is a deficient number, since it is larger than the sum of its proper divisors (421201039).

834895985 is a wasteful number, since it uses less digits than its factorization.

834895985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12185.

The product of its digits is 12441600, while the sum is 59.

The square root of 834895985 is about 28894.5667037940. The cubic root of 834895985 is about 941.6238662076.

The spelling of 834895985 in words is "eight hundred thirty-four million, eight hundred ninety-five thousand, nine hundred eighty-five".