11712172 has 24 divisors (see below), whose sum is σ = 21893760. Its totient is φ = 5470080.

The previous prime is 11712163. The next prime is 11712191. The reversal of 11712172 is 27121711.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1968 + ... + 5224.

It is an arithmetic number, because the mean of its divisors is an integer number (912240).

Almost surely, 2^11712172 is an apocalyptic number.

It is an amenable number.

11712172 is a deficient number, since it is larger than the sum of its proper divisors (10181588).

11712172 is a wasteful number, since it uses less digits than its factorization.

11712172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3321 (or 3319 counting only the distinct ones).

The product of its digits is 196, while the sum is 22.

The square root of 11712172 is about 3422.3050711472. The cubic root of 11712172 is about 227.0975665255.

Adding to 11712172 its reverse (27121711), we get a palindrome (38833883).

The spelling of 11712172 in words is "eleven million, seven hundred twelve thousand, one hundred seventy-two".