859406 has 8 divisors (see below), whose sum is σ = 1295184. Its totient is φ = 427680.

The previous prime is 859393. The next prime is 859423. The reversal of 859406 is 604958.

859406 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 congruent number.

It is an unprimeable number.

859406 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410 + ... + 1373.

It is an arithmetic number, because the mean of its divisors is an integer number (161898).

2⁸⁵⁹⁴⁰⁶ is an apocalyptic number.

859406 is a deficient number, since it is larger than the sum of its proper divisors (435778).

859406 is a wasteful number, since it uses less digits than its factorization.

859406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 859406 is about 927.0415308928. The cubic root of 859406 is about 95.0749546958.

The spelling of 859406 in words is "eight hundred fifty-nine thousand, four hundred six".