785580349 has 4 divisors (see below), whose sum is σ = 786297564. Its totient is φ = 784863136.

The previous prime is 785580329. The next prime is 785580359. The reversal of 785580349 is 943085587.

785580349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 523723225 + 261857124 = 22885^2 + 16182^2 .

It is a cyclic number.

It is not a de Polignac number, because 785580349 - 2¹⁷ = 785449277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (785580329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356962 + ... + 359155.

It is an arithmetic number, because the mean of its divisors is an integer number (196574391).

Almost surely, 2^785580349 is an apocalyptic number.

It is an amenable number.

785580349 is a deficient number, since it is larger than the sum of its proper divisors (717215).

785580349 is a wasteful number, since it uses less digits than its factorization.

785580349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717214.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The square root of 785580349 is about 28028.2063107863. The cubic root of 785580349 is about 922.7064087692.

The spelling of 785580349 in words is "seven hundred eighty-five million, five hundred eighty thousand, three hundred forty-nine".