2864864 has 12 divisors (see below), whose sum is σ = 5640264. Its totient is φ = 1432416.

The previous prime is 2864843. The next prime is 2864867. The reversal of 2864864 is 4684682.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2864867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44732 + ... + 44795.

It is an arithmetic number, because the mean of its divisors is an integer number (470022).

2^2864864 is an apocalyptic number.

It is an amenable number.

2864864 is a deficient number, since it is larger than the sum of its proper divisors (2775400).

2864864 is an equidigital number, since it uses as much as digits as its factorization.

2864864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89537 (or 89529 counting only the distinct ones).

The product of its digits is 73728, while the sum is 38.

The square root of 2864864 is about 1692.5909133633. The cubic root of 2864864 is about 142.0260482533.

The spelling of 2864864 in words is "two million, eight hundred sixty-four thousand, eight hundred sixty-four".