2731463 has 4 divisors (see below), whose sum is σ = 3121680. Its totient is φ = 2341248.

The previous prime is 2731429. The next prime is 2731493. The reversal of 2731463 is 3641372.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2731463 - 2⁸ = 2731207 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 (2731493) 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, 195098 + ... + 195111.

It is an arithmetic number, because the mean of its divisors is an integer number (780420).

2^2731463 is an apocalyptic number.

2731463 is a deficient number, since it is larger than the sum of its proper divisors (390217).

2731463 is an equidigital number, since it uses as much as digits as its factorization.

2731463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390216.

The product of its digits is 3024, while the sum is 26.

The square root of 2731463 is about 1652.7138288282. The cubic root of 2731463 is about 139.7864601709.

Subtracting 2731463 from its reverse (3641372), we obtain a palindrome (909909).

The spelling of 2731463 in words is "two million, seven hundred thirty-one thousand, four hundred sixty-three".