861430443 has 8 divisors (see below), whose sum is σ = 1216137168. Its totient is φ = 540505344.

The previous prime is 861430393. The next prime is 861430447. The reversal of 861430443 is 344034168.

It is a happy number.

861430443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 861430443 - 2¹⁷ = 861299371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (861430447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8445346 + ... + 8445447.

It is an arithmetic number, because the mean of its divisors is an integer number (152017146).

Almost surely, 2^861430443 is an apocalyptic number.

861430443 is a deficient number, since it is larger than the sum of its proper divisors (354706725).

861430443 is a wasteful number, since it uses less digits than its factorization.

861430443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16890813.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 861430443 is about 29350.1353148499. The cubic root of 861430443 is about 951.4954997506.

The spelling of 861430443 in words is "eight hundred sixty-one million, four hundred thirty thousand, four hundred forty-three".