2812860 has 48 divisors (see below), whose sum is σ = 8752800. Its totient is φ = 749952.

The previous prime is 2812853. The next prime is 2812867. The reversal of 2812860 is 682182.

It is an interprime number because it is at equal distance from previous prime (2812853) and next prime (2812867).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2812867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2065 + ... + 3144.

It is an arithmetic number, because the mean of its divisors is an integer number (182350).

2^2812860 is an apocalyptic number.

2812860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2812860 is an abundant number, since it is smaller than the sum of its proper divisors (5939940).

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

2812860 is a wasteful number, since it uses less digits than its factorization.

2812860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5227 (or 5219 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 2812860 is about 1677.1583109534. The cubic root of 2812860 is about 141.1614267058.

The spelling of 2812860 in words is "two million, eight hundred twelve thousand, eight hundred sixty".