785961828 has 72 divisors (see below), whose sum is σ = 2163470400. Its totient is φ = 239633856.

The previous prime is 785961821. The next prime is 785961851. The reversal of 785961828 is 828169587.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (785961821) 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, 25 + ... + 39647.

It is an arithmetic number, because the mean of its divisors is an integer number (30048200).

Almost surely, 2^785961828 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 785961828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1081735200).

785961828 is an abundant number, since it is smaller than the sum of its proper divisors (1377508572).

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

785961828 is a wasteful number, since it uses less digits than its factorization.

785961828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39681 (or 39676 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 54.

The square root of 785961828 is about 28035.0107544121. The cubic root of 785961828 is about 922.8557404736.

The spelling of 785961828 in words is "seven hundred eighty-five million, nine hundred sixty-one thousand, eight hundred twenty-eight".