856005010 has 24 divisors (see below), whose sum is σ = 1792370700. Its totient is φ = 293487264.

The previous prime is 856005001. The next prime is 856005041. The reversal of 856005010 is 10500658.

It can be written as a sum of positive squares in 2 ways, for example, as 807298569 + 48706441 = 28413^2 + 6979^2 .

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 11 ways as a sum of consecutive naturals, for example, 872985 + ... + 873964.

Almost surely, 2^856005010 is an apocalyptic number.

856005010 is an abundant number, since it is smaller than the sum of its proper divisors (936365690).

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

856005010 is a wasteful number, since it uses less digits than its factorization.

856005010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746970 (or 1746963 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 856005010 is about 29257.5632956677. The cubic root of 856005010 is about 949.4937320976.

Adding to 856005010 its reverse (10500658), we get a palindrome (866505668).

The spelling of 856005010 in words is "eight hundred fifty-six million, five thousand, ten".