855651072 has 72 divisors (see below), whose sum is σ = 2411274096.
Its totient is φ = 268435456.
The previous prime is 855651047. The next prime is 855651079. The reversal of 855651072 is 270156558.
It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.
It is a zygodrome in base 2 and base 16.
It is a self number, because there is not a number n which added to its sum of digits gives 855651072.
It is not an unprimeable number, because it can be changed into a prime (855651079) by changing a digit.
In principle, a polygon with 855651072 sides can be constructed with ruler and compass.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19713 + ... + 45824.
It is an arithmetic number, because the mean of its divisors is an integer number (33489918).
Almost surely, 2855651072 is an apocalyptic number.
It is an amenable number.
855651072 is an abundant number, since it is smaller than the sum of its proper divisors (1555623024).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
855651072 is a wasteful number, since it uses less digits than its factorization.
855651072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 65573 (or 65559 counting only the distinct ones).
The product of its (nonzero) digits is 84000, while the sum is 39.
The square root of 855651072 is about 29251.5140120986.
The cubic root of 855651072 is about 949.3628495922.
The spelling of 855651072 in words is "eight hundred fifty-five million, six hundred fifty-one thousand, seventy-two".