1166471 has 4 divisors (see below), whose sum is σ = 1168872. Its totient is φ = 1164072.

The previous prime is 1166453. The next prime is 1166479. The reversal of 1166471 is 1746611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1746611 = 79 ⋅22109.

It is a cyclic number.

It is not a de Polignac number, because 1166471 - 2¹⁰ = 1165447 is a prime.

It is a super-3 number, since 3×1166471³ = 4761492374196915333, which contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1166471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185 + ... + 1538.

It is an arithmetic number, because the mean of its divisors is an integer number (292218).

2^1166471 is an apocalyptic number.

1166471 is a deficient number, since it is larger than the sum of its proper divisors (2401).

1166471 is an equidigital number, since it uses as much as digits as its factorization.

1166471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400.

The product of its digits is 1008, while the sum is 26.

The square root of 1166471 is about 1080.0328698702. The cubic root of 1166471 is about 105.2667743889.

The spelling of 1166471 in words is "one million, one hundred sixty-six thousand, four hundred seventy-one".