2212785 has 32 divisors (see below), whose sum is σ = 4049280. Its totient is φ = 1145664.

The previous prime is 2212783. The next prime is 2212817. The reversal of 2212785 is 5872122.

It is not a de Polignac number, because 2212785 - 2¹ = 2212783 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4774 + ... + 5216.

It is an arithmetic number, because the mean of its divisors is an integer number (126540).

2^2212785 is an apocalyptic number.

It is an amenable number.

2212785 is a deficient number, since it is larger than the sum of its proper divisors (1836495).

2212785 is a wasteful number, since it uses less digits than its factorization.

2212785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 488 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 2212785 is about 1487.5432766814. The cubic root of 2212785 is about 130.3105985438.

The spelling of 2212785 in words is "two million, two hundred twelve thousand, seven hundred eighty-five".