834821694 has 64 divisors (see below), whose sum is σ = 2169530880. Its totient is φ = 232968960.

The previous prime is 834821683. The next prime is 834821699. The reversal of 834821694 is 496128438.

It is a happy number.

834821694 is a `hidden beast` number, since 8 + 3 + 482 + 169 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834821699) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9427 + ... + 41934.

It is an arithmetic number, because the mean of its divisors is an integer number (33898920).

Almost surely, 2^834821694 is an apocalyptic number.

834821694 is an abundant number, since it is smaller than the sum of its proper divisors (1334709186).

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

834821694 is a wasteful number, since it uses less digits than its factorization.

834821694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51422 (or 51416 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 834821694 is about 28893.2811220879. The cubic root of 834821694 is about 941.5959360802.

The spelling of 834821694 in words is "eight hundred thirty-four million, eight hundred twenty-one thousand, six hundred ninety-four".