2812745 has 16 divisors (see below), whose sum is σ = 3677520. Its totient is φ = 2052864.

The previous prime is 2812729. The next prime is 2812751. The reversal of 2812745 is 5472182.

It can be written as a sum of positive squares in 8 ways, for example, as 17161 + 2795584 = 131^2 + 1672^2 .

It is a cyclic number.

It is not a de Polignac number, because 2812745 - 2⁴ = 2812729 is a prime.

It is a super-3 number, since 3×2812745³ = 66759386773333180875, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6887 + ... + 7283.

It is an arithmetic number, because the mean of its divisors is an integer number (229845).

2^2812745 is an apocalyptic number.

It is an amenable number.

2812745 is a deficient number, since it is larger than the sum of its proper divisors (864775).

2812745 is a wasteful number, since it uses less digits than its factorization.

2812745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524.

The product of its digits is 4480, while the sum is 29.

The square root of 2812745 is about 1677.1240264214. The cubic root of 2812745 is about 141.1595029478.

The spelling of 2812745 in words is "two million, eight hundred twelve thousand, seven hundred forty-five".