861594946 has 8 divisors (see below), whose sum is σ = 1307963664. Its totient is φ = 425607060.

The previous prime is 861594941. The next prime is 861594947. The reversal of 861594946 is 649495168.

It is a happy number.

861594946 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 a junction number, because it is equal to n+sod(n) for n = 861594893 and 861594902.

It is not an unprimeable number, because it can be changed into a prime (861594941) 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, 2595000 + ... + 2595331.

It is an arithmetic number, because the mean of its divisors is an integer number (163495458).

Almost surely, 2^861594946 is an apocalyptic number.

861594946 is a deficient number, since it is larger than the sum of its proper divisors (446368718).

861594946 is a wasteful number, since it uses less digits than its factorization.

861594946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5190416.

The product of its digits is 1866240, while the sum is 52.

The square root of 861594946 is about 29352.9376042671. The cubic root of 861594946 is about 951.5560633178.

The spelling of 861594946 in words is "eight hundred sixty-one million, five hundred ninety-four thousand, nine hundred forty-six".