11994775 has 36 divisors (see below), whose sum is σ = 17155152. Its totient is φ = 8286720.

The previous prime is 11994751. The next prime is 11994779. The reversal of 11994775 is 57749911.

11994775 = 353² + 354² + ... + 430².

It is not a de Polignac number, because 11994775 - 2¹¹ = 11992727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11994779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 71742 + ... + 71908.

It is an arithmetic number, because the mean of its divisors is an integer number (476532).

Almost surely, 2^11994775 is an apocalyptic number.

11994775 is a deficient number, since it is larger than the sum of its proper divisors (5160377).

11994775 is a wasteful number, since it uses less digits than its factorization.

11994775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 202 counting only the distinct ones).

The product of its digits is 79380, while the sum is 43.

The square root of 11994775 is about 3463.3473692369. The cubic root of 11994775 is about 228.9096151761.

It can be divided in two parts, 11994 and 775, that added together give a square (12769 = 113²).

The spelling of 11994775 in words is "eleven million, nine hundred ninety-four thousand, seven hundred seventy-five".