11171867 has 12 divisors (see below), whose sum is σ = 13478256. Its totient is φ = 9069840.

The previous prime is 11171861. The next prime is 11171879. The reversal of 11171867 is 76817111.

11171867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11171867 - 2¹² = 11167771 is a prime.

It is a super-2 number, since 2×11171867² = 249621224531378, 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 (11171861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 317 + ... + 4737.

It is an arithmetic number, because the mean of its divisors is an integer number (1123188).

Almost surely, 2^11171867 is an apocalyptic number.

11171867 is a deficient number, since it is larger than the sum of its proper divisors (2306389).

11171867 is an equidigital number, since it uses as much as digits as its factorization.

11171867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4466 (or 4447 counting only the distinct ones).

The product of its digits is 2352, while the sum is 32.

The square root of 11171867 is about 3342.4342925479. The cubic root of 11171867 is about 223.5502975582.

Adding to 11171867 its reverse (76817111), we get a palindrome (87988978).

The spelling of 11171867 in words is "eleven million, one hundred seventy-one thousand, eight hundred sixty-seven".