834497685 has 72 divisors (see below), whose sum is σ = 1690191360. Its totient is φ = 379770048.

The previous prime is 834497681. The next prime is 834497701. The reversal of 834497685 is 586794438.

It is not a de Polignac number, because 834497685 - 2² = 834497681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834497681) 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 in 71 ways as a sum of consecutive naturals, for example, 579196 + ... + 580634.

It is an arithmetic number, because the mean of its divisors is an integer number (23474880).

Almost surely, 2^834497685 is an apocalyptic number.

It is an amenable number.

834497685 is an abundant number, since it is smaller than the sum of its proper divisors (855693675).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

834497685 is a wasteful number, since it uses less digits than its factorization.

834497685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727 (or 1717 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 834497685 is about 28887.6735823430. The cubic root of 834497685 is about 941.4741036625.

The spelling of 834497685 in words is "eight hundred thirty-four million, four hundred ninety-seven thousand, six hundred eighty-five".