1166004 has 54 divisors (see below), whose sum is σ = 3433794. Its totient is φ = 332640.

The previous prime is 1165993. The next prime is 1166021. The reversal of 1166004 is 4006611.

1166004 is a `hidden beast` number, since 1 + 1 + 660 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1102500 + 63504 = 1050^2 + 252^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1434 + ... + 2094.

2^1166004 is an apocalyptic number.

1166004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1166004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1716897).

1166004 is an abundant number, since it is smaller than the sum of its proper divisors (2267790).

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

1166004 is a wasteful number, since it uses less digits than its factorization.

1166004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1166004 is about 1079.8166511033. The cubic root of 1166004 is about 105.2527245624.

The spelling of 1166004 in words is "one million, one hundred sixty-six thousand, four".