2681731 has 8 divisors (see below), whose sum is σ = 3013920. Its totient is φ = 2367552.

The previous prime is 2681729. The next prime is 2681803. The reversal of 2681731 is 1371862.

2681731 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 a cyclic number.

It is not a de Polignac number, because 2681731 - 2¹ = 2681729 is a prime.

It is a super-2 number, since 2×2681731² = 14383362312722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2681731.

It is not an unprimeable number, because it can be changed into a prime (2682731) 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, 4186 + ... + 4783.

It is an arithmetic number, because the mean of its divisors is an integer number (376740).

2^2681731 is an apocalyptic number.

2681731 is a deficient number, since it is larger than the sum of its proper divisors (332189).

2681731 is a wasteful number, since it uses less digits than its factorization.

2681731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9005.

The product of its digits is 2016, while the sum is 28.

The square root of 2681731 is about 1637.5991573032. The cubic root of 2681731 is about 138.9328903310.

The spelling of 2681731 in words is "two million, six hundred eighty-one thousand, seven hundred thirty-one".