2731873 has 4 divisors (see below), whose sum is σ = 2746368. Its totient is φ = 2717380.

The previous prime is 2731853. The next prime is 2731889. The reversal of 2731873 is 3781372.

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-2731873 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2731823) 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, 6961 + ... + 7342.

It is an arithmetic number, because the mean of its divisors is an integer number (686592).

2^2731873 is an apocalyptic number.

It is an amenable number.

2731873 is a deficient number, since it is larger than the sum of its proper divisors (14495).

2731873 is a wasteful number, since it uses less digits than its factorization.

2731873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14494.

The product of its digits is 7056, while the sum is 31.

The square root of 2731873 is about 1652.8378625866. The cubic root of 2731873 is about 139.7934539298.

The spelling of 2731873 in words is "two million, seven hundred thirty-one thousand, eight hundred seventy-three".