785442673 has 4 divisors (see below), whose sum is σ = 785505280. Its totient is φ = 785380068.

The previous prime is 785442667. The next prime is 785442677. The reversal of 785442673 is 376244587.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 785442673 - 2¹⁷ = 785311601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (785442677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5265 + ... + 39982.

It is an arithmetic number, because the mean of its divisors is an integer number (196376320).

Almost surely, 2^785442673 is an apocalyptic number.

It is an amenable number.

785442673 is a deficient number, since it is larger than the sum of its proper divisors (62607).

785442673 is a wasteful number, since it uses less digits than its factorization.

785442673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62606.

The product of its digits is 1128960, while the sum is 46.

The square root of 785442673 is about 28025.7501772923. The cubic root of 785442673 is about 922.6525029956.

The spelling of 785442673 in words is "seven hundred eighty-five million, four hundred forty-two thousand, six hundred seventy-three".