2160667 has 4 divisors (see below), whose sum is σ = 2164176. Its totient is φ = 2157160.

The previous prime is 2160629. The next prime is 2160671. The reversal of 2160667 is 7660612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2160667 - 2¹⁹ = 1636379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2160617) 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, 559 + ... + 2152.

It is an arithmetic number, because the mean of its divisors is an integer number (541044).

2^2160667 is an apocalyptic number.

2160667 is a deficient number, since it is larger than the sum of its proper divisors (3509).

2160667 is an equidigital number, since it uses as much as digits as its factorization.

2160667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3508.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 2160667 is about 1469.9207461629. The cubic root of 2160667 is about 129.2793856616.

Subtracting 2160667 from its reverse (7660612), we obtain a palindrome (5499945).

The spelling of 2160667 in words is "two million, one hundred sixty thousand, six hundred sixty-seven".