806549856 has 96 divisors (see below), whose sum is σ = 2503146240. Its totient is φ = 222491136.

The previous prime is 806549837. The next prime is 806549857. The reversal of 806549856 is 658945608.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 806549799 and 806549808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806549857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1206 + ... + 40181.

It is an arithmetic number, because the mean of its divisors is an integer number (26074440).

Almost surely, 2^806549856 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 806549856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1251573120).

806549856 is an abundant number, since it is smaller than the sum of its proper divisors (1696596384).

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

806549856 is a wasteful number, since it uses less digits than its factorization.

806549856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41436 (or 41428 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 51.

The square root of 806549856 is about 28399.8214078892. The cubic root of 806549856 is about 930.8443620746.

The spelling of 806549856 in words is "eight hundred six million, five hundred forty-nine thousand, eight hundred fifty-six".