2081773 has 4 divisors (see below), whose sum is σ = 2191360. Its totient is φ = 1972188.

The previous prime is 2081749. The next prime is 2081777. The reversal of 2081773 is 3771802.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2081773 is a prime.

It is a Duffinian number.

2081773 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081777) 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, 54765 + ... + 54802.

It is an arithmetic number, because the mean of its divisors is an integer number (547840).

2^2081773 is an apocalyptic number.

It is an amenable number.

2081773 is a deficient number, since it is larger than the sum of its proper divisors (109587).

2081773 is a wasteful number, since it uses less digits than its factorization.

2081773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109586.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 2081773 is about 1442.8350564080. The cubic root of 2081773 is about 127.6863454847.

The spelling of 2081773 in words is "two million, eighty-one thousand, seven hundred seventy-three".