830778066 has 32 divisors (see below), whose sum is σ = 1954774080. Its totient is φ = 260635968.

The previous prime is 830778061. The next prime is 830778089. The reversal of 830778066 is 660877038.

It is not an unprimeable number, because it can be changed into a prime (830778061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451576 + ... + 453411.

It is an arithmetic number, because the mean of its divisors is an integer number (61086690).

Almost surely, 2^830778066 is an apocalyptic number.

830778066 is an abundant number, since it is smaller than the sum of its proper divisors (1123996014).

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

830778066 is a wasteful number, since it uses less digits than its factorization.

830778066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905015 (or 905009 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 830778066 is about 28823.2209511706. The cubic root of 830778066 is about 940.0732046505.

The spelling of 830778066 in words is "eight hundred thirty million, seven hundred seventy-eight thousand, sixty-six".