862556 has 12 divisors (see below), whose sum is σ = 1518720. Its totient is φ = 428640.

The previous prime is 862553. The next prime is 862559. The reversal of 862556 is 655268.

Added to its reverse (655268) it gives a square (1517824 = 1232²).

It is a happy number.

862556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (862553) and next prime (862559).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (862553) 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, 200 + ... + 1328.

It is an arithmetic number, because the mean of its divisors is an integer number (126560).

2⁸⁶²⁵⁵⁶ is an apocalyptic number.

It is an amenable number.

862556 is a deficient number, since it is larger than the sum of its proper divisors (656164).

862556 is a wasteful number, since it uses less digits than its factorization.

862556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324 (or 1322 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 862556 is about 928.7389299475. The cubic root of 862556 is about 95.1909731808.

Adding to 862556 its reverse (655268), we get a square (1517824 = 1232²).

The spelling of 862556 in words is "eight hundred sixty-two thousand, five hundred fifty-six".