2868641 has 4 divisors (see below), whose sum is σ = 2872452. Its totient is φ = 2864832.

The previous prime is 2868617. The next prime is 2868673. The reversal of 2868641 is 1468682.

2868641 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, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1745041 + 1123600 = 1321^2 + 1060^2 .

It is a cyclic number.

It is not a de Polignac number, because 2868641 - 2⁶ = 2868577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2862641) 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, 356 + ... + 2421.

It is an arithmetic number, because the mean of its divisors is an integer number (718113).

2^2868641 is an apocalyptic number.

It is an amenable number.

2868641 is a deficient number, since it is larger than the sum of its proper divisors (3811).

2868641 is a wasteful number, since it uses less digits than its factorization.

2868641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3810.

The product of its digits is 18432, while the sum is 35.

The square root of 2868641 is about 1693.7062909489. The cubic root of 2868641 is about 142.0884359518.

The spelling of 2868641 in words is "two million, eight hundred sixty-eight thousand, six hundred forty-one".