622863 has 32 divisors (see below), whose sum is σ = 1036800. Its totient is φ = 367488.

The previous prime is 622861. The next prime is 622879. The reversal of 622863 is 368226.

It is not a de Polignac number, because 622863 - 2¹ = 622861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (3456) is a multiple of the sum of its prime factors (108).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10528 + ... + 10586.

It is an arithmetic number, because the mean of its divisors is an integer number (32400).

2⁶²²⁸⁶³ is an apocalyptic number.

622863 is a deficient number, since it is larger than the sum of its proper divisors (413937).

622863 is a wasteful number, since it uses less digits than its factorization.

622863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 102 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 622863 is about 789.2167002795. The cubic root of 622863 is about 85.4012402308.

It can be divided in two parts, 622 and 863, that added together give a triangular number (1485 = T₅₄).

The spelling of 622863 in words is "six hundred twenty-two thousand, eight hundred sixty-three".