2803873 has 2 divisors, whose sum is σ = 2803874. Its totient is φ = 2803872.

The previous prime is 2803847. The next prime is 2803877. The reversal of 2803873 is 3783082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2634129 + 169744 = 1623^2 + 412^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2803873 is a prime.

It is not a weakly prime, because it can be changed into another prime (2803877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1401936 + 1401937.

It is an arithmetic number, because the mean of its divisors is an integer number (1401937).

2^2803873 is an apocalyptic number.

It is an amenable number.

2803873 is a deficient number, since it is larger than the sum of its proper divisors (1).

2803873 is an equidigital number, since it uses as much as digits as its factorization.

2803873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 2803873 is about 1674.4769332541. The cubic root of 2803873 is about 141.0109308629.

The spelling of 2803873 in words is "two million, eight hundred three thousand, eight hundred seventy-three".