4123623 has 16 divisors (see below), whose sum is σ = 6324480. Its totient is φ = 2341056.

The previous prime is 4123621. The next prime is 4123633. The reversal of 4123623 is 3263214.

It is a happy number.

It is not a de Polignac number, because 4123623 - 2¹ = 4123621 is a prime.

It is a super-2 number, since 2×4123623² = 34008533292258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 4123623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4123621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3211 + ... + 4307.

It is an arithmetic number, because the mean of its divisors is an integer number (395280).

Almost surely, 2^4123623 is an apocalyptic number.

4123623 is a deficient number, since it is larger than the sum of its proper divisors (2200857).

4123623 is a wasteful number, since it uses less digits than its factorization.

4123623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286.

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

The square root of 4123623 is about 2030.6705788975. The cubic root of 4123623 is about 160.3588689591.

Adding to 4123623 its reverse (3263214), we get a palindrome (7386837).

The spelling of 4123623 in words is "four million, one hundred twenty-three thousand, six hundred twenty-three".