785388630 has 96 divisors (see below), whose sum is σ = 2063414304. Its totient is φ = 191213568.

The previous prime is 785388629. The next prime is 785388647. The reversal of 785388630 is 36883587.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 785388630.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 490992 + ... + 492588.

It is an arithmetic number, because the mean of its divisors is an integer number (21493899).

Almost surely, 2^785388630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 785388630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1031707152).

785388630 is an abundant number, since it is smaller than the sum of its proper divisors (1278025674).

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

785388630 is a wasteful number, since it uses less digits than its factorization.

785388630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730 (or 1717 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The square root of 785388630 is about 28024.7859938305. The cubic root of 785388630 is about 922.6313412336.

The spelling of 785388630 in words is "seven hundred eighty-five million, three hundred eighty-eight thousand, six hundred thirty".