2214805 has 4 divisors (see below), whose sum is σ = 2657772. Its totient is φ = 1771840.

The previous prime is 2214791. The next prime is 2214827. The reversal of 2214805 is 5084122.

2214805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 252004 + 1962801 = 502^2 + 1401^2 .

It is not a de Polignac number, because 2214805 - 2¹³ = 2206613 is a prime.

It is a super-2 number, since 2×2214805² = 9810722376050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 221476 + ... + 221485.

It is an arithmetic number, because the mean of its divisors is an integer number (664443).

2^2214805 is an apocalyptic number.

It is an amenable number.

2214805 is a deficient number, since it is larger than the sum of its proper divisors (442967).

2214805 is an equidigital number, since it uses as much as digits as its factorization.

2214805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442966.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 2214805 is about 1488.2220936406. Note that the first 3 decimals coincide. The cubic root of 2214805 is about 130.3502389896.

Adding to 2214805 its reverse (5084122), we get a palindrome (7298927).

The spelling of 2214805 in words is "two million, two hundred fourteen thousand, eight hundred five".