833806644 has 72 divisors (see below), whose sum is σ = 2174964960. Its totient is φ = 248360640.

The previous prime is 833806609. The next prime is 833806669. The reversal of 833806644 is 446608338.

It is a junction number, because it is equal to n+sod(n) for n = 833806596 and 833806605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80802 + ... + 90534.

Almost surely, 2^833806644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 833806644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1087482480).

833806644 is an abundant number, since it is smaller than the sum of its proper divisors (1341158316).

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

833806644 is a wasteful number, since it uses less digits than its factorization.

833806644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9821 (or 9808 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 42.

The square root of 833806644 is about 28875.7102769785. The cubic root of 833806644 is about 941.2141561176.

The spelling of 833806644 in words is "eight hundred thirty-three million, eight hundred six thousand, six hundred forty-four".