2999864 has 16 divisors (see below), whose sum is σ = 6428400. Its totient is φ = 1285632.

The previous prime is 2999863. The next prime is 2999873. The reversal of 2999864 is 4689992.

2999864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2999863) 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, 26729 + ... + 26840.

It is an arithmetic number, because the mean of its divisors is an integer number (401775).

2^2999864 is an apocalyptic number.

It is an amenable number.

2999864 is an abundant number, since it is smaller than the sum of its proper divisors (3428536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2999864 is a wasteful number, since it uses less digits than its factorization.

2999864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53582 (or 53578 counting only the distinct ones).

The product of its digits is 279936, while the sum is 47.

The square root of 2999864 is about 1732.0115473056. The cubic root of 2999864 is about 144.2227775985. Note that the first 3 decimals are identical.

The spelling of 2999864 in words is "two million, nine hundred ninety-nine thousand, eight hundred sixty-four".