859427 has 4 divisors (see below), whose sum is σ = 904680. Its totient is φ = 814176.

The previous prime is 859423. The next prime is 859433. The reversal of 859427 is 724958.

It is a happy number.

859427 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 is a cyclic number.

It is not a de Polignac number, because 859427 - 2² = 859423 is a prime.

It is a super-2 number, since 2×859427² = 1477229536658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (859423) 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, 22598 + ... + 22635.

It is an arithmetic number, because the mean of its divisors is an integer number (226170).

859427 is a Friedman number, since it can be written as 8+(5^7+4)*(9+2), using all its digits and the basic arithmetic operations.

2⁸⁵⁹⁴²⁷ is an apocalyptic number.

859427 is a deficient number, since it is larger than the sum of its proper divisors (45253).

859427 is a wasteful number, since it uses less digits than its factorization.

859427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45252.

The product of its digits is 20160, while the sum is 35.

The square root of 859427 is about 927.0528571770. The cubic root of 859427 is about 95.0757290903.

The spelling of 859427 in words is "eight hundred fifty-nine thousand, four hundred twenty-seven".