11179971 has 16 divisors (see below), whose sum is σ = 18069120. Its totient is φ = 6775560.

The previous prime is 11179967. The next prime is 11179981. The reversal of 11179971 is 17997111.

It is not a de Polignac number, because 11179971 - 2² = 11179967 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11179901) 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 15 ways as a sum of consecutive naturals, for example, 18525 + ... + 19118.

It is an arithmetic number, because the mean of its divisors is an integer number (1129320).

Almost surely, 2^11179971 is an apocalyptic number.

11179971 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11179971 is a deficient number, since it is larger than the sum of its proper divisors (6889149).

11179971 is a wasteful number, since it uses less digits than its factorization.

11179971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37663 (or 37657 counting only the distinct ones).

The product of its digits is 3969, while the sum is 36.

The square root of 11179971 is about 3343.6463628799. The cubic root of 11179971 is about 223.6043384729.

The spelling of 11179971 in words is "eleven million, one hundred seventy-nine thousand, nine hundred seventy-one".