1223943 has 16 divisors (see below), whose sum is σ = 1881600. Its totient is φ = 693216.

The previous prime is 1223941. The next prime is 1223953. The reversal of 1223943 is 3493221.

It is not a de Polignac number, because 1223943 - 2¹ = 1223941 is a prime.

1223943 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3333 + ... + 3681.

It is an arithmetic number, because the mean of its divisors is an integer number (117600).

2^1223943 is an apocalyptic number.

1223943 is a deficient number, since it is larger than the sum of its proper divisors (657657).

1223943 is a wasteful number, since it uses less digits than its factorization.

1223943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526.

The product of its digits is 1296, while the sum is 24.

The square root of 1223943 is about 1106.3195740834. The cubic root of 1223943 is about 106.9679643228.

The spelling of 1223943 in words is "one million, two hundred twenty-three thousand, nine hundred forty-three".