2945867 has 4 divisors (see below), whose sum is σ = 2975136. Its totient is φ = 2916600.

The previous prime is 2945857. The next prime is 2945869. The reversal of 2945867 is 7685492.

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 2945867 - 2⁴ = 2945851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2945869) 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, 14483 + ... + 14684.

It is an arithmetic number, because the mean of its divisors is an integer number (743784).

2^2945867 is an apocalyptic number.

2945867 is a deficient number, since it is larger than the sum of its proper divisors (29269).

2945867 is a wasteful number, since it uses less digits than its factorization.

2945867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29268.

The product of its digits is 120960, while the sum is 41.

The square root of 2945867 is about 1716.3528192071. The cubic root of 2945867 is about 143.3522053151.

The spelling of 2945867 in words is "two million, nine hundred forty-five thousand, eight hundred sixty-seven".