2864838 has 16 divisors (see below), whose sum is σ = 5852160. Its totient is φ = 934536.

The previous prime is 2864833. The next prime is 2864843. The reversal of 2864838 is 8384682.

It is an interprime number because it is at equal distance from previous prime (2864833) and next prime (2864843).

It is a junction number, because it is equal to n+sod(n) for n = 2864796 and 2864805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2864831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4798 + ... + 5361.

It is an arithmetic number, because the mean of its divisors is an integer number (365760).

2^2864838 is an apocalyptic number.

2864838 is an abundant number, since it is smaller than the sum of its proper divisors (2987322).

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

2864838 is a wasteful number, since it uses less digits than its factorization.

2864838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10211.

The product of its digits is 73728, while the sum is 39.

The square root of 2864838 is about 1692.5832328131. The cubic root of 2864838 is about 142.0256186007.

The spelling of 2864838 in words is "two million, eight hundred sixty-four thousand, eight hundred thirty-eight".