2681803 has 2 divisors, whose sum is σ = 2681804. Its totient is φ = 2681802.

The previous prime is 2681729. The next prime is 2681807. The reversal of 2681803 is 3081862.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2681803 is a prime.

It is not a weakly prime, because it can be changed into another prime (2681807) 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 as a sum of consecutive naturals, namely, 1340901 + 1340902.

It is an arithmetic number, because the mean of its divisors is an integer number (1340902).

2^2681803 is an apocalyptic number.

2681803 is a deficient number, since it is larger than the sum of its proper divisors (1).

2681803 is an equidigital number, since it uses as much as digits as its factorization.

2681803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 2681803 is about 1637.6211405572. The cubic root of 2681803 is about 138.9341336919.

The spelling of 2681803 in words is "two million, six hundred eighty-one thousand, eight hundred three".