856093 has 4 divisors (see below), whose sum is σ = 978400. Its totient is φ = 733788.

The previous prime is 856081. The next prime is 856099. The reversal of 856093 is 390658.

856093 is nontrivially palindromic in base 16.

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, and also an emirpimes, since its reverse is a distinct semiprime: 390658 = 2 ⋅195329.

It is a cyclic number.

It is not a de Polignac number, because 856093 - 2⁵ = 856061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856099) 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, 61143 + ... + 61156.

It is an arithmetic number, because the mean of its divisors is an integer number (244600).

2⁸⁵⁶⁰⁹³ is an apocalyptic number.

It is an amenable number.

856093 is a deficient number, since it is larger than the sum of its proper divisors (122307).

856093 is a wasteful number, since it uses less digits than its factorization.

856093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122306.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 856093 is about 925.2529383904. The cubic root of 856093 is about 94.9526264264.

The spelling of 856093 in words is "eight hundred fifty-six thousand, ninety-three".