862231 has 2 divisors, whose sum is σ = 862232. Its totient is φ = 862230.

The previous prime is 862229. The next prime is 862241. The reversal of 862231 is 132268.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 862231 - 2¹ = 862229 is a prime.

It is a super-2 number, since 2×862231² = 1486884594722, which contains 22 as substring.

Together with 862229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (862241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431115 + 431116.

It is an arithmetic number, because the mean of its divisors is an integer number (431116).

2⁸⁶²²³¹ is an apocalyptic number.

862231 is a deficient number, since it is larger than the sum of its proper divisors (1).

862231 is an equidigital number, since it uses as much as digits as its factorization.

862231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 22.

The square root of 862231 is about 928.5639450248. The cubic root of 862231 is about 95.1790161010.

Adding to 862231 its reverse (132268), we get a palindrome (994499).

The spelling of 862231 in words is "eight hundred sixty-two thousand, two hundred thirty-one".