1622223 has 6 divisors (see below), whose sum is σ = 2343224. Its totient is φ = 1081476.

The previous prime is 1622209. The next prime is 1622233. The reversal of 1622223 is 3222261.

It is not a de Polignac number, because 1622223 - 2⁴ = 1622207 is a prime.

It is a Duffinian number.

1622223 is a lucky number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 1622196 and 1622205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622233) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90115 + ... + 90132.

2^1622223 is an apocalyptic number.

1622223 is a deficient number, since it is larger than the sum of its proper divisors (721001).

1622223 is a wasteful number, since it uses less digits than its factorization.

1622223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180253 (or 180250 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 1622223 is about 1273.6651836334. The cubic root of 1622223 is about 117.4997253653.

Adding to 1622223 its reverse (3222261), we get a palindrome (4844484).

The spelling of 1622223 in words is "one million, six hundred twenty-two thousand, two hundred twenty-three".