850856634 has 12 divisors (see below), whose sum is σ = 1843522746. Its totient is φ = 283618872.

The previous prime is 850856627. The next prime is 850856639. The reversal of 850856634 is 436658058.

850856634 is a `hidden beast` number, since 8 + 5 + 0 + 8 + 5 + 6 + 634 = 666.

It can be written as a sum of positive squares in only one way, i.e., 447449409 + 403407225 = 21153^2 + 20085^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 850856634.

It is not an unprimeable number, because it can be changed into a prime (850856639) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23634889 + ... + 23634924.

Almost surely, 2^850856634 is an apocalyptic number.

850856634 is an abundant number, since it is smaller than the sum of its proper divisors (992666112).

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

850856634 is a wasteful number, since it uses less digits than its factorization.

850856634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47269821 (or 47269818 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 850856634 is about 29169.4469265360. The cubic root of 850856634 is about 947.5863508068.

It can be divided in two parts, 85085 and 6634, that added together give a palindrome (91719).

The spelling of 850856634 in words is "eight hundred fifty million, eight hundred fifty-six thousand, six hundred thirty-four".