2623 has 4 divisors (see below), whose sum is σ = 2728.
Its totient is φ = 2520.
The previous prime is 2621. The next prime is 2633. The reversal of 2623 is 3262.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is not a de Polignac number, because 2623 - 21 = 2621 is a prime.
It is a d-powerful number, because it can be written as 29 + 211 + 62 + 33 .
It is a Duffinian number.
It is a plaindrome in base 13.
It is a nialpdrome in base 14.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2621) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13 + ... + 73.
It is an arithmetic number, because the mean of its divisors is an integer number (682).
2623 is a deficient number, since it is larger than the sum of its proper divisors (105).
2623 is an equidigital number, since it uses as much as digits as its factorization.
2623 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 104.
The product of its digits is 72, while the sum is 13.
The square root of 2623 is about 51.2152321092.
The cubic root of 2623 is about 13.7911165960.
Adding to 2623 its reverse (3262), we get a palindrome (5885).
It can be divided in two parts, 26 and 23, that added together give a square (49 = 72).
The spelling of 2623 in words is "two thousand, six hundred twenty-three".