834699820 has 24 divisors (see below), whose sum is σ = 1753514784. Its totient is φ = 333757056.

The previous prime is 834699799. The next prime is 834699821. The reversal of 834699820 is 28996438.

It is not an unprimeable number, because it can be changed into a prime (834699821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64624 + ... + 76456.

It is an arithmetic number, because the mean of its divisors is an integer number (73063116).

Almost surely, 2^834699820 is an apocalyptic number.

It is an amenable number.

834699820 is an abundant number, since it is smaller than the sum of its proper divisors (918814964).

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

834699820 is a wasteful number, since it uses less digits than its factorization.

834699820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15369 (or 15367 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 834699820 is about 28891.1720080719. The cubic root of 834699820 is about 941.5501132621.

The spelling of 834699820 in words is "eight hundred thirty-four million, six hundred ninety-nine thousand, eight hundred twenty".