809010680 has 32 divisors (see below), whose sum is σ = 1883044800. Its totient is φ = 312445056.

The previous prime is 809010679. The next prime is 809010733. The reversal of 809010680 is 86010908.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 347552 + ... + 349871.

It is an arithmetic number, because the mean of its divisors is an integer number (58845150).

Almost surely, 2^809010680 is an apocalyptic number.

It is an amenable number.

809010680 is an abundant number, since it is smaller than the sum of its proper divisors (1074034120).

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

809010680 is a wasteful number, since it uses less digits than its factorization.

809010680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697463 (or 697459 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 809010680 is about 28443.1130504381. The cubic root of 809010680 is about 931.7900851637.

The spelling of 809010680 in words is "eight hundred nine million, ten thousand, six hundred eighty".