2897867 has 4 divisors (see below), whose sum is σ = 3311856. Its totient is φ = 2483880.

The previous prime is 2897833. The next prime is 2897887. The reversal of 2897867 is 7687982.

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

It is not a de Polignac number, because 2897867 - 2⁸ = 2897611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2897827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206984 + ... + 206997.

It is an arithmetic number, because the mean of its divisors is an integer number (827964).

2^2897867 is an apocalyptic number.

2897867 is a deficient number, since it is larger than the sum of its proper divisors (413989).

2897867 is an equidigital number, since it uses as much as digits as its factorization.

2897867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413988.

The product of its digits is 338688, while the sum is 47.

The square root of 2897867 is about 1702.3122510280. The cubic root of 2897867 is about 142.5693434948.

The spelling of 2897867 in words is "two million, eight hundred ninety-seven thousand, eight hundred sixty-seven".