2164937287 has 2 divisors, whose sum is σ = 2164937288. Its totient is φ = 2164937286.

The previous prime is 2164937279. The next prime is 2164937329. The reversal of 2164937287 is 7827394612.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2164937287 - 2³ = 2164937279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2164937287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2164937237) 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 as a sum of consecutive naturals, namely, 1082468643 + 1082468644.

It is an arithmetic number, because the mean of its divisors is an integer number (1082468644).

Almost surely, 2^2164937287 is an apocalyptic number.

2164937287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164937287 is an equidigital number, since it uses as much as digits as its factorization.

2164937287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 49.

The square root of 2164937287 is about 46528.8865867216. The cubic root of 2164937287 is about 1293.6449777227.

The spelling of 2164937287 in words is "two billion, one hundred sixty-four million, nine hundred thirty-seven thousand, two hundred eighty-seven".