785768730 has 64 divisors (see below), whose sum is σ = 2004248448. Its totient is φ = 196474880.

The previous prime is 785768729. The next prime is 785768743. The reversal of 785768730 is 37867587.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140569 + ... + 146051.

It is an arithmetic number, because the mean of its divisors is an integer number (31316382).

Almost surely, 2^785768730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 785768730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1002124224).

785768730 is an abundant number, since it is smaller than the sum of its proper divisors (1218479718).

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

785768730 is a wasteful number, since it uses less digits than its factorization.

785768730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5791.

The product of its (nonzero) digits is 1975680, while the sum is 51.

The square root of 785768730 is about 28031.5666704521. The cubic root of 785768730 is about 922.7801574164.

The spelling of 785768730 in words is "seven hundred eighty-five million, seven hundred sixty-eight thousand, seven hundred thirty".