857289036 has 24 divisors (see below), whose sum is σ = 2005104304. Its totient is φ = 285082560.

The previous prime is 857289031. The next prime is 857289067. The reversal of 857289036 is 630982758.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (857289031) by changing a digit.

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, 79795 + ... + 89898.

Almost surely, 2^857289036 is an apocalyptic number.

It is an amenable number.

857289036 is an abundant number, since it is smaller than the sum of its proper divisors (1147815268).

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

857289036 is a wasteful number, since it uses less digits than its factorization.

857289036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170121 (or 170119 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 857289036 is about 29279.4985612800. The cubic root of 857289036 is about 949.9682486156.

The spelling of 857289036 in words is "eight hundred fifty-seven million, two hundred eighty-nine thousand, thirty-six".