2646867 has 4 divisors (see below), whose sum is σ = 3529160. Its totient is φ = 1764576.

The previous prime is 2646841. The next prime is 2646881. The reversal of 2646867 is 7686462.

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

It is not a de Polignac number, because 2646867 - 2⁶ = 2646803 is a prime.

It is a D-number.

It is a Duffinian number.

2646867 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2646887) 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, 441142 + ... + 441147.

It is an arithmetic number, because the mean of its divisors is an integer number (882290).

2^2646867 is an apocalyptic number.

2646867 is a deficient number, since it is larger than the sum of its proper divisors (882293).

2646867 is an equidigital number, since it uses as much as digits as its factorization.

2646867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882292.

The product of its digits is 96768, while the sum is 39.

The square root of 2646867 is about 1626.9194817200. The cubic root of 2646867 is about 138.3281938704.

The spelling of 2646867 in words is "two million, six hundred forty-six thousand, eight hundred sixty-seven".