11959623 has 24 divisors (see below), whose sum is σ = 19193040. Its totient is φ = 7356960.

The previous prime is 11959603. The next prime is 11959627. The reversal of 11959623 is 32695911.

It is not a de Polignac number, because 11959623 - 2⁶ = 11959559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11959627) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3253 + ... + 5873.

It is an arithmetic number, because the mean of its divisors is an integer number (799710).

Almost surely, 2^11959623 is an apocalyptic number.

11959623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11959623 is a deficient number, since it is larger than the sum of its proper divisors (7233417).

11959623 is a wasteful number, since it uses less digits than its factorization.

11959623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2656 (or 2637 counting only the distinct ones).

The product of its digits is 14580, while the sum is 36.

The square root of 11959623 is about 3458.2687865462. The cubic root of 11959623 is about 228.6857814895.

The spelling of 11959623 in words is "eleven million, nine hundred fifty-nine thousand, six hundred twenty-three".