2731813 has 8 divisors (see below), whose sum is σ = 3223040. Its totient is φ = 2265840.

The previous prime is 2731787. The next prime is 2731819. The reversal of 2731813 is 3181372.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2731813 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 (2731819) 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, 6078 + ... + 6511.

It is an arithmetic number, because the mean of its divisors is an integer number (402880).

2^2731813 is an apocalyptic number.

It is an amenable number.

2731813 is a deficient number, since it is larger than the sum of its proper divisors (491227).

2731813 is a wasteful number, since it uses less digits than its factorization.

2731813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12627.

The product of its digits is 1008, while the sum is 25.

The square root of 2731813 is about 1652.8197118863. The cubic root of 2731813 is about 139.7924304966.

The spelling of 2731813 in words is "two million, seven hundred thirty-one thousand, eight hundred thirteen".