785113856 has 72 divisors (see below), whose sum is σ = 1678818960. Its totient is φ = 365133824.

The previous prime is 785113853. The next prime is 785113867. The reversal of 785113856 is 658311587.

It is not an unprimeable number, because it can be changed into a prime (785113853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386315 + ... + 388341.

It is an arithmetic number, because the mean of its divisors is an integer number (23316930).

Almost surely, 2^785113856 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 785113856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (839409480).

785113856 is an abundant number, since it is smaller than the sum of its proper divisors (893705104).

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

785113856 is a wasteful number, since it uses less digits than its factorization.

785113856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149 (or 2135 counting only the distinct ones).

The product of its digits is 201600, while the sum is 44.

The square root of 785113856 is about 28019.8832260236. The cubic root of 785113856 is about 922.5237322253.

The spelling of 785113856 in words is "seven hundred eighty-five million, one hundred thirteen thousand, eight hundred fifty-six".