859457 has 4 divisors (see below), whose sum is σ = 861360. Its totient is φ = 857556.

The previous prime is 859447. The next prime is 859459. The reversal of 859457 is 754958.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 859457 - 2⁶ = 859393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 859457.

It is not an unprimeable number, because it can be changed into a prime (859459) 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, 158 + ... + 1320.

It is an arithmetic number, because the mean of its divisors is an integer number (215340).

2⁸⁵⁹⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

859457 is a deficient number, since it is larger than the sum of its proper divisors (1903).

859457 is a wasteful number, since it uses less digits than its factorization.

859457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902.

The product of its digits is 50400, while the sum is 38.

The square root of 859457 is about 927.0690373430. The cubic root of 859457 is about 95.0768353463.

The spelling of 859457 in words is "eight hundred fifty-nine thousand, four hundred fifty-seven".