850679808 has 192 divisors, whose sum is σ = 2542700160. Its totient is φ = 250675200.

The previous prime is 850679807. The next prime is 850679857. The reversal of 850679808 is 808976058.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×850679808² = 1447312271477833728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850679801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2770791 + ... + 2771097.

It is an arithmetic number, because the mean of its divisors is an integer number (13243230).

Almost surely, 2^850679808 is an apocalyptic number.

850679808 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 850679808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1271350080).

850679808 is an abundant number, since it is smaller than the sum of its proper divisors (1692020352).

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

850679808 is a wasteful number, since it uses less digits than its factorization.

850679808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 51.

The square root of 850679808 is about 29166.4157551112. The cubic root of 850679808 is about 947.5207034321.

The spelling of 850679808 in words is "eight hundred fifty million, six hundred seventy-nine thousand, eight hundred eight".