855620336 has 120 divisors (see below), whose sum is σ = 1871118336. Its totient is φ = 378362880.

The previous prime is 855620333. The next prime is 855620341. The reversal of 855620336 is 633026558.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 855620336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855620333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6737105 + ... + 6737231.

Almost surely, 2^855620336 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 855620336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (935559168).

855620336 is an abundant number, since it is smaller than the sum of its proper divisors (1015498000).

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

855620336 is a wasteful number, since it uses less digits than its factorization.

855620336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The square root of 855620336 is about 29250.9886328650. The cubic root of 855620336 is about 949.3514820434.

The spelling of 855620336 in words is "eight hundred fifty-five million, six hundred twenty thousand, three hundred thirty-six".