13222623 has 16 divisors (see below), whose sum is σ = 18186336. Its totient is φ = 8540160.

The previous prime is 13222621. The next prime is 13222633. The reversal of 13222623 is 32622231.

It is not a de Polignac number, because 13222623 - 2¹ = 13222621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13222623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13222621) 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, 23461 + ... + 24017.

It is an arithmetic number, because the mean of its divisors is an integer number (1136646).

Almost surely, 2^13222623 is an apocalyptic number.

13222623 is a deficient number, since it is larger than the sum of its proper divisors (4963713).

13222623 is a wasteful number, since it uses less digits than its factorization.

13222623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794.

The product of its digits is 864, while the sum is 21.

The square root of 13222623 is about 3636.2924799856. The cubic root of 13222623 is about 236.4680872988.

Adding to 13222623 its reverse (32622231), we get a palindrome (45844854).

The spelling of 13222623 in words is "thirteen million, two hundred twenty-two thousand, six hundred twenty-three".