1171984 has 20 divisors (see below), whose sum is σ = 2477520. Its totient is φ = 532640.

The previous prime is 1171981. The next prime is 1171991. The reversal of 1171984 is 4891711.

It is not an unprimeable number, because it can be changed into a prime (1171981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3154 + ... + 3505.

It is an arithmetic number, because the mean of its divisors is an integer number (123876).

2^1171984 is an apocalyptic number.

It is an amenable number.

1171984 is an abundant number, since it is smaller than the sum of its proper divisors (1305536).

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

1171984 is a wasteful number, since it uses less digits than its factorization.

1171984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6678 (or 6672 counting only the distinct ones).

The product of its digits is 2016, while the sum is 31.

The square root of 1171984 is about 1082.5820985034. The cubic root of 1171984 is about 105.4323518315.

The spelling of 1171984 in words is "one million, one hundred seventy-one thousand, nine hundred eighty-four".