1166888 has 8 divisors (see below), whose sum is σ = 2187930. Its totient is φ = 583440.

The previous prime is 1166861. The next prime is 1166903. The reversal of 1166888 is 8886611.

It can be written as a sum of positive squares in only one way, i.e., 1119364 + 47524 = 1058^2 + 218^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72923 + ... + 72938.

2^1166888 is an apocalyptic number.

It is an amenable number.

1166888 is a deficient number, since it is larger than the sum of its proper divisors (1021042).

1166888 is a wasteful number, since it uses less digits than its factorization.

1166888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145867 (or 145863 counting only the distinct ones).

The product of its digits is 18432, while the sum is 38.

The square root of 1166888 is about 1080.2259023001. The cubic root of 1166888 is about 105.2793167825.

The spelling of 1166888 in words is "one million, one hundred sixty-six thousand, eight hundred eighty-eight".