2867864 has 8 divisors (see below), whose sum is σ = 5377260. Its totient is φ = 1433928.

The previous prime is 2867861. The next prime is 2867867. The reversal of 2867864 is 4687682.

It is an interprime number because it is at equal distance from previous prime (2867861) and next prime (2867867).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2867861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 179234 + ... + 179249.

2^2867864 is an apocalyptic number.

It is an amenable number.

2867864 is a deficient number, since it is larger than the sum of its proper divisors (2509396).

2867864 is a wasteful number, since it uses less digits than its factorization.

2867864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358489 (or 358485 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 2867864 is about 1693.4768968014. The cubic root of 2867864 is about 142.0756061038.

The spelling of 2867864 in words is "two million, eight hundred sixty-seven thousand, eight hundred sixty-four".