2731423 has 8 divisors (see below), whose sum is σ = 2857680. Its totient is φ = 2607360.

The previous prime is 2731381. The next prime is 2731427. The reversal of 2731423 is 3241372.

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

It is not a de Polignac number, because 2731423 - 2⁹ = 2730911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2731394 and 2731403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2731427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2328 + ... + 3298.

It is an arithmetic number, because the mean of its divisors is an integer number (357210).

2^2731423 is an apocalyptic number.

2731423 is a deficient number, since it is larger than the sum of its proper divisors (126257).

2731423 is an equidigital number, since it uses as much as digits as its factorization.

2731423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097.

The product of its digits is 1008, while the sum is 22.

The square root of 2731423 is about 1652.7017274753. The cubic root of 2731423 is about 139.7857778155.

Adding to 2731423 its reverse (3241372), we get a palindrome (5972795).

The spelling of 2731423 in words is "two million, seven hundred thirty-one thousand, four hundred twenty-three".