3879191587 has 2 divisors, whose sum is σ = 3879191588. Its totient is φ = 3879191586.

The previous prime is 3879191543. The next prime is 3879191627. The reversal of 3879191587 is 7851919783.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3879191587 is a prime.

It is not a weakly prime, because it can be changed into another prime (3879192587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1939595793 + 1939595794.

It is an arithmetic number, because the mean of its divisors is an integer number (1939595794).

Almost surely, 2^3879191587 is an apocalyptic number.

3879191587 is a deficient number, since it is larger than the sum of its proper divisors (1).

3879191587 is an equidigital number, since it uses as much as digits as its factorization.

3879191587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 58.

The square root of 3879191587 is about 62283.1565272667. The cubic root of 3879191587 is about 1571.2564606233.

The spelling of 3879191587 in words is "three billion, eight hundred seventy-nine million, one hundred ninety-one thousand, five hundred eighty-seven".