2812685 has 4 divisors (see below), whose sum is σ = 3375228. Its totient is φ = 2250144.

The previous prime is 2812679. The next prime is 2812687. The reversal of 2812685 is 5862182.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1865956 + 946729 = 1366^2 + 973^2 .

It is a cyclic number.

It is not a de Polignac number, because 2812685 - 2¹⁰ = 2811661 is a prime.

It is a super-2 number, since 2×2812685² = 15822393818450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2812687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281264 + ... + 281273.

It is an arithmetic number, because the mean of its divisors is an integer number (843807).

2^2812685 is an apocalyptic number.

It is an amenable number.

2812685 is a deficient number, since it is larger than the sum of its proper divisors (562543).

2812685 is an equidigital number, since it uses as much as digits as its factorization.

2812685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562542.

The product of its digits is 7680, while the sum is 32.

The square root of 2812685 is about 1677.1061385613. The cubic root of 2812685 is about 141.1584992272.

The spelling of 2812685 in words is "two million, eight hundred twelve thousand, six hundred eighty-five".