2865047 has 4 divisors (see below), whose sum is σ = 2931720. Its totient is φ = 2798376.

The previous prime is 2865043. The next prime is 2865059. The reversal of 2865047 is 7405682.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7405682 = 2 ⋅3702841.

It is a cyclic number.

It is not a de Polignac number, because 2865047 - 2² = 2865043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2865043) 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, 33272 + ... + 33357.

It is an arithmetic number, because the mean of its divisors is an integer number (732930).

2^2865047 is an apocalyptic number.

2865047 is a deficient number, since it is larger than the sum of its proper divisors (66673).

2865047 is an equidigital number, since it uses as much as digits as its factorization.

2865047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66672.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 2865047 is about 1692.6449716346. The cubic root of 2865047 is about 142.0290722727.

The spelling of 2865047 in words is "two million, eight hundred sixty-five thousand, forty-seven".