859387 has 4 divisors (see below), whose sum is σ = 862416. Its totient is φ = 856360.

The previous prime is 859381. The next prime is 859393. The reversal of 859387 is 783958.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (859381) and next prime (859393).

It is a cyclic number.

It is not a de Polignac number, because 859387 - 2⁷ = 859259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (859381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1039 + ... + 1672.

It is an arithmetic number, because the mean of its divisors is an integer number (215604).

2⁸⁵⁹³⁸⁷ is an apocalyptic number.

859387 is a deficient number, since it is larger than the sum of its proper divisors (3029).

859387 is a wasteful number, since it uses less digits than its factorization.

859387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3028.

The product of its digits is 60480, while the sum is 40.

The square root of 859387 is about 927.0312831830. The cubic root of 859387 is about 95.0742540424.

It can be divided in two parts, 8 and 59387, that added together give a palindrome (59395).

The spelling of 859387 in words is "eight hundred fifty-nine thousand, three hundred eighty-seven".