11771172 has 54 divisors (see below), whose sum is σ = 34618038. Its totient is φ = 3362688.

The previous prime is 11771153. The next prime is 11771173. The reversal of 11771172 is 27117711.

11771172 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7001316 + 4769856 = 2646^2 + 2184^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (11771173) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1573 + ... + 5100.

Almost surely, 2^11771172 is an apocalyptic number.

11771172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11771172 is an abundant number, since it is smaller than the sum of its proper divisors (22846866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11771172 is a wasteful number, since it uses less digits than its factorization.

11771172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6697 (or 6685 counting only the distinct ones).

The product of its digits is 686, while the sum is 27.

The square root of 11771172 is about 3430.9141638928. The cubic root of 11771172 is about 227.4782622228.

Adding to 11771172 its reverse (27117711), we get a palindrome (38888883).

It can be divided in two parts, 117 and 71172, that added together give a square (71289 = 267²).

The spelling of 11771172 in words is "eleven million, seven hundred seventy-one thousand, one hundred seventy-two".