855898810 has 24 divisors (see below), whose sum is σ = 1668246300. Its totient is φ = 316023552.

The previous prime is 855898787. The next prime is 855898817. The reversal of 855898810 is 18898558.

It can be written as a sum of positive squares in 6 ways, for example, as 160801 + 855738009 = 401^2 + 29253^2 .

It is a super-2 number, since 2×855898810² = 1465125545918832200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (855898817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 251535 + ... + 254914.

Almost surely, 2^855898810 is an apocalyptic number.

855898810 is a deficient number, since it is larger than the sum of its proper divisors (812347490).

855898810 is a wasteful number, since it uses less digits than its factorization.

855898810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506482 (or 506469 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 52.

The square root of 855898810 is about 29255.7483240474. The cubic root of 855898810 is about 949.4544642571.

The spelling of 855898810 in words is "eight hundred fifty-five million, eight hundred ninety-eight thousand, eight hundred ten".