1117288 has 8 divisors (see below), whose sum is σ = 2094930. Its totient is φ = 558640.

The previous prime is 1117279. The next prime is 1117301. The reversal of 1117288 is 8827111.

It can be written as a sum of positive squares in only one way, i.e., 925444 + 191844 = 962^2 + 438^2 .

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

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 69823 + ... + 69838.

2^1117288 is an apocalyptic number.

It is an amenable number.

1117288 is a deficient number, since it is larger than the sum of its proper divisors (977642).

1117288 is a wasteful number, since it uses less digits than its factorization.

1117288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139667 (or 139663 counting only the distinct ones).

The product of its digits is 896, while the sum is 28.

The square root of 1117288 is about 1057.0184482780. The cubic root of 1117288 is about 103.7659925993.

The spelling of 1117288 in words is "one million, one hundred seventeen thousand, two hundred eighty-eight".