2208773 has 6 divisors (see below), whose sum is σ = 2569446. Its totient is φ = 1893192.

The previous prime is 2208757. The next prime is 2208779. The reversal of 2208773 is 3778022.

2208773 = 42² + 43² + ... + 188².

It can be written as a sum of positive squares in only one way, i.e., 1940449 + 268324 = 1393^2 + 518^2 .

It is not a de Polignac number, because 2208773 - 2⁴ = 2208757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2208779) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22490 + ... + 22587.

It is an arithmetic number, because the mean of its divisors is an integer number (428241).

2^2208773 is an apocalyptic number.

It is an amenable number.

2208773 is a deficient number, since it is larger than the sum of its proper divisors (360673).

2208773 is an equidigital number, since it uses as much as digits as its factorization.

2208773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45091 (or 45084 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 2208773 is about 1486.1941326758. The cubic root of 2208773 is about 130.2317955261.

The spelling of 2208773 in words is "two million, two hundred eight thousand, seven hundred seventy-three".