4098987187 has 2 divisors, whose sum is σ = 4098987188. Its totient is φ = 4098987186.

The previous prime is 4098987163. The next prime is 4098987209. The reversal of 4098987187 is 7817898904.

It is a happy number.

4098987187 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4098987187 - 2¹¹ = 4098985139 is a prime.

It is not a weakly prime, because it can be changed into another prime (4098987787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2049493593 + 2049493594.

It is an arithmetic number, because the mean of its divisors is an integer number (2049493594).

Almost surely, 2^4098987187 is an apocalyptic number.

4098987187 is a deficient number, since it is larger than the sum of its proper divisors (1).

4098987187 is an equidigital number, since it uses as much as digits as its factorization.

4098987187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8128512, while the sum is 61.

The square root of 4098987187 is about 64023.3331450339. Note that the first 3 decimals coincide. The cubic root of 4098987187 is about 1600.3888621244.

The spelling of 4098987187 in words is "four billion, ninety-eight million, nine hundred eighty-seven thousand, one hundred eighty-seven".