850904064 has 132 divisors (see below), whose sum is σ = 2479719424. Its totient is φ = 281014272.

The previous prime is 850904039. The next prime is 850904069. The reversal of 850904064 is 460409058.

It is a super-2 number, since 2×850904064² = 1448075452263432192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (850904069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1170069 + ... + 1170795.

Almost surely, 2^850904064 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 850904064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1239859712).

850904064 is an abundant number, since it is smaller than the sum of its proper divisors (1628815360).

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

850904064 is a wasteful number, since it uses less digits than its factorization.

850904064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880 (or 859 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 850904064 is about 29170.2599234220. The cubic root of 850904064 is about 947.6039578409.

The spelling of 850904064 in words is "eight hundred fifty million, nine hundred four thousand, sixty-four".