2864387 has 4 divisors (see below), whose sum is σ = 2869296. Its totient is φ = 2859480.

The previous prime is 2864371. The next prime is 2864401. The reversal of 2864387 is 7834682.

2864387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2864387 - 2⁴ = 2864371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2864387.

It is not an unprimeable number, because it can be changed into a prime (2864357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1439 + ... + 2792.

It is an arithmetic number, because the mean of its divisors is an integer number (717324).

2^2864387 is an apocalyptic number.

2864387 is a deficient number, since it is larger than the sum of its proper divisors (4909).

2864387 is an equidigital number, since it uses as much as digits as its factorization.

2864387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4908.

The product of its digits is 64512, while the sum is 38.

The square root of 2864387 is about 1692.4499992614. The cubic root of 2864387 is about 142.0181653677.

The spelling of 2864387 in words is "two million, eight hundred sixty-four thousand, three hundred eighty-seven".