2984138987 has 2 divisors, whose sum is σ = 2984138988. Its totient is φ = 2984138986.

The previous prime is 2984138953. The next prime is 2984139007. The reversal of 2984138987 is 7898314892.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2984138987 - 2¹² = 2984134891 is a prime.

It is not a weakly prime, because it can be changed into another prime (2984138687) 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, 1492069493 + 1492069494.

It is an arithmetic number, because the mean of its divisors is an integer number (1492069494).

Almost surely, 2^2984138987 is an apocalyptic number.

2984138987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2984138987 is an equidigital number, since it uses as much as digits as its factorization.

2984138987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6967296, while the sum is 59.

The square root of 2984138987 is about 54627.2732890815. The cubic root of 2984138987 is about 1439.7033511548.

The spelling of 2984138987 in words is "two billion, nine hundred eighty-four million, one hundred thirty-eight thousand, nine hundred eighty-seven".