2731868 has 6 divisors (see below), whose sum is σ = 4780776. Its totient is φ = 1365932.

The previous prime is 2731853. The next prime is 2731889. The reversal of 2731868 is 8681372.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 341480 + ... + 341487.

It is an arithmetic number, because the mean of its divisors is an integer number (796796).

2^2731868 is an apocalyptic number.

It is an amenable number.

2731868 is a deficient number, since it is larger than the sum of its proper divisors (2048908).

2731868 is a wasteful number, since it uses less digits than its factorization.

2731868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682971 (or 682969 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 2731868 is about 1652.8363500359. The cubic root of 2731868 is about 139.7933686443.

The spelling of 2731868 in words is "two million, seven hundred thirty-one thousand, eight hundred sixty-eight".