2869812 has 36 divisors (see below), whose sum is σ = 7914816. Its totient is φ = 869520.

The previous prime is 2869807. The next prime is 2869813. The reversal of 2869812 is 2189682.

2869812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2869813) 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 11 ways as a sum of consecutive naturals, for example, 3228 + ... + 4019.

It is an arithmetic number, because the mean of its divisors is an integer number (219856).

2^2869812 is an apocalyptic number.

2869812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2869812 is an abundant number, since it is smaller than the sum of its proper divisors (5045004).

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

2869812 is a wasteful number, since it uses less digits than its factorization.

2869812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7268 (or 7263 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 2869812 is about 1694.0519472555. The cubic root of 2869812 is about 142.1077671640.

The spelling of 2869812 in words is "two million, eight hundred sixty-nine thousand, eight hundred twelve".