862443 has 12 divisors (see below), whose sum is σ = 1262560. Its totient is φ = 567216.

The previous prime is 862441. The next prime is 862447. The reversal of 862443 is 344268.

It is not a de Polignac number, because 862443 - 2¹ = 862441 is a prime.

It is a d-powerful number, because it can be written as 8³ + 6⁵ + 4⁸ + 2¹⁹ + 4⁹ + 3⁷ .

It is a Duffinian number.

862443 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (862441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105 + ... + 1317.

2⁸⁶²⁴⁴³ is an apocalyptic number.

862443 is a deficient number, since it is larger than the sum of its proper divisors (400117).

862443 is a wasteful number, since it uses less digits than its factorization.

862443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298 (or 1295 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 862443 is about 928.6780927749. The cubic root of 862443 is about 95.1868161368.

The spelling of 862443 in words is "eight hundred sixty-two thousand, four hundred forty-three".