526861 has 4 divisors (see below), whose sum is σ = 549792. Its totient is φ = 503932.

The previous prime is 526859. The next prime is 526871. The reversal of 526861 is 168625.

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 526861 - 2¹ = 526859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (526831) 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, 11431 + ... + 11476.

It is an arithmetic number, because the mean of its divisors is an integer number (137448).

2⁵²⁶⁸⁶¹ is an apocalyptic number.

It is an amenable number.

526861 is a deficient number, since it is larger than the sum of its proper divisors (22931).

526861 is a wasteful number, since it uses less digits than its factorization.

526861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22930.

The product of its digits is 2880, while the sum is 28.

The square root of 526861 is about 725.8519132716. The cubic root of 526861 is about 80.7666402332.

It can be divided in two parts, 5268 and 61, that added together give a square (5329 = 73²).

The spelling of 526861 in words is "five hundred twenty-six thousand, eight hundred sixty-one".