2099773 has 4 divisors (see below), whose sum is σ = 2261308. Its totient is φ = 1938240.

The previous prime is 2099771. The next prime is 2099809. The reversal of 2099773 is 3779902.

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 1258884 + 840889 = 1122^2 + 917^2 .

It is a cyclic number.

It is not a de Polignac number, because 2099773 - 2¹ = 2099771 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 0 + 9 + 9² + 7² + 7⁴ + 3⁴ .

It is a Duffinian number.

2099773 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2099771) 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, 80748 + ... + 80773.

It is an arithmetic number, because the mean of its divisors is an integer number (565327).

2^2099773 is an apocalyptic number.

It is an amenable number.

2099773 is a deficient number, since it is larger than the sum of its proper divisors (161535).

2099773 is a wasteful number, since it uses less digits than its factorization.

2099773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161534.

The product of its (nonzero) digits is 23814, while the sum is 37.

The square root of 2099773 is about 1449.0593500613. The cubic root of 2099773 is about 128.0533021822.

The spelling of 2099773 in words is "two million, ninety-nine thousand, seven hundred seventy-three".