802646287 has 2 divisors, whose sum is σ = 802646288. Its totient is φ = 802646286.

The previous prime is 802646261. The next prime is 802646297. The reversal of 802646287 is 782646208.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 802646287 - 2¹⁵ = 802613519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (802646227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401323143 + 401323144.

It is an arithmetic number, because the mean of its divisors is an integer number (401323144).

Almost surely, 2^802646287 is an apocalyptic number.

802646287 is a deficient number, since it is larger than the sum of its proper divisors (1).

802646287 is an equidigital number, since it uses as much as digits as its factorization.

802646287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 802646287 is about 28331.0128128170. The cubic root of 802646287 is about 929.3402215204.

The spelling of 802646287 in words is "eight hundred two million, six hundred forty-six thousand, two hundred eighty-seven".