2731373 has 4 divisors (see below), whose sum is σ = 2892060. Its totient is φ = 2570688.

The previous prime is 2731367. The next prime is 2731381. The reversal of 2731373 is 3731372.

It is a happy number.

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 1643524 + 1087849 = 1282^2 + 1043^2 .

It is a cyclic number.

It is not a de Polignac number, because 2731373 - 2⁴ = 2731357 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 (2733373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80318 + ... + 80351.

It is an arithmetic number, because the mean of its divisors is an integer number (723015).

2^2731373 is an apocalyptic number.

It is an amenable number.

2731373 is a deficient number, since it is larger than the sum of its proper divisors (160687).

2731373 is a wasteful number, since it uses less digits than its factorization.

2731373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160686.

The product of its digits is 2646, while the sum is 26.

The square root of 2731373 is about 1652.6866006597. The cubic root of 2731373 is about 139.7849248618.

Subtracting 2731373 from its reverse (3731372), we obtain a palindrome (999999).

The spelling of 2731373 in words is "two million, seven hundred thirty-one thousand, three hundred seventy-three".