87002909839 has 2 divisors, whose sum is σ = 87002909840. Its totient is φ = 87002909838.

The previous prime is 87002909821. The next prime is 87002909843. The reversal of 87002909839 is 93890920078.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87002909839 - 2⁷ = 87002909711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87002909839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87002909039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43501454919 + 43501454920.

It is an arithmetic number, because the mean of its divisors is an integer number (43501454920).

Almost surely, 2^87002909839 is an apocalyptic number.

87002909839 is a deficient number, since it is larger than the sum of its proper divisors (1).

87002909839 is an equidigital number, since it uses as much as digits as its factorization.

87002909839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 87002909839 in words is "eighty-seven billion, two million, nine hundred nine thousand, eight hundred thirty-nine".