806728830 has 64 divisors (see below), whose sum is σ = 1977592320. Its totient is φ = 210555776.

The previous prime is 806728807. The next prime is 806728859. The reversal of 806728830 is 38827608.

806728830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×806728830² = 1301622810306337800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 464644 + ... + 466376.

It is an arithmetic number, because the mean of its divisors is an integer number (30899880).

Almost surely, 2^806728830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 806728830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (988796160).

806728830 is an abundant number, since it is smaller than the sum of its proper divisors (1170863490).

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

806728830 is a wasteful number, since it uses less digits than its factorization.

806728830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 806728830 is about 28402.9722036269. The cubic root of 806728830 is about 930.9132086629.

The spelling of 806728830 in words is "eight hundred six million, seven hundred twenty-eight thousand, eight hundred thirty".