2865668 has 12 divisors (see below), whose sum is σ = 5400780. Its totient is φ = 1322592.

The previous prime is 2865661. The next prime is 2865679. The reversal of 2865668 is 8665682.

It can be written as a sum of positive squares in 2 ways, for example, as 1420864 + 1444804 = 1192^2 + 1202^2 .

It is not an unprimeable number, because it can be changed into a prime (2865661) 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, 27503 + ... + 27606.

It is an arithmetic number, because the mean of its divisors is an integer number (450065).

2^2865668 is an apocalyptic number.

It is an amenable number.

2865668 is a deficient number, since it is larger than the sum of its proper divisors (2535112).

2865668 is a wasteful number, since it uses less digits than its factorization.

2865668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55126 (or 55124 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 2865668 is about 1692.8284024082. The cubic root of 2865668 is about 142.0393331494.

The spelling of 2865668 in words is "two million, eight hundred sixty-five thousand, six hundred sixty-eight".