809948782 has 8 divisors (see below), whose sum is σ = 1286389296. Its totient is φ = 381152352.

The previous prime is 809948771. The next prime is 809948813. The reversal of 809948782 is 287849908.

809948782 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11910978 + ... + 11911045.

It is an arithmetic number, because the mean of its divisors is an integer number (160798662).

Almost surely, 2^809948782 is an apocalyptic number.

809948782 is a deficient number, since it is larger than the sum of its proper divisors (476440514).

809948782 is a wasteful number, since it uses less digits than its factorization.

809948782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23822042.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The square root of 809948782 is about 28459.5991187508. The cubic root of 809948782 is about 932.1501036888.

The spelling of 809948782 in words is "eight hundred nine million, nine hundred forty-eight thousand, seven hundred eighty-two".