4163623 has 6 divisors (see below), whose sum is σ = 4423256. Its totient is φ = 3918432.

The previous prime is 4163611. The next prime is 4163629. The reversal of 4163623 is 3263614.

It is a de Polignac number, because none of the positive numbers 2^k-4163623 is a prime.

It is a super-2 number, since 2×4163623² = 34671512972258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4163629) 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, 6915 + ... + 7492.

Almost surely, 2^4163623 is an apocalyptic number.

4163623 is a deficient number, since it is larger than the sum of its proper divisors (259633).

4163623 is a wasteful number, since it uses less digits than its factorization.

4163623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14441 (or 14424 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

The square root of 4163623 is about 2040.4957730905. The cubic root of 4163623 is about 160.8757061852.

Subtracting from 4163623 its reverse (3263614), we obtain a palindrome (900009).

The spelling of 4163623 in words is "four million, one hundred sixty-three thousand, six hundred twenty-three".