2801287 has 2 divisors, whose sum is σ = 2801288. Its totient is φ = 2801286.

The previous prime is 2801273. The next prime is 2801299. The reversal of 2801287 is 7821082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2801287 - 2¹¹ = 2799239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2801237) 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, 1400643 + 1400644.

It is an arithmetic number, because the mean of its divisors is an integer number (1400644).

2^2801287 is an apocalyptic number.

2801287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2801287 is an equidigital number, since it uses as much as digits as its factorization.

2801287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 2801287 is about 1673.7045736927. The cubic root of 2801287 is about 140.9675662703.

The spelling of 2801287 in words is "two million, eight hundred one thousand, two hundred eighty-seven".