2731047 has 8 divisors (see below), whose sum is σ = 3972480. Its totient is φ = 1655160.

The previous prime is 2731013. The next prime is 2731049. The reversal of 2731047 is 7401372.

2731047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2731047 - 2⁶ = 2730983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2731049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41347 + ... + 41412.

It is an arithmetic number, because the mean of its divisors is an integer number (496560).

2^2731047 is an apocalyptic number.

2731047 is a deficient number, since it is larger than the sum of its proper divisors (1241433).

2731047 is a wasteful number, since it uses less digits than its factorization.

2731047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82773.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 2731047 is about 1652.5879704270. The cubic root of 2731047 is about 139.7793633489.

The spelling of 2731047 in words is "two million, seven hundred thirty-one thousand, forty-seven".