8687420123 has 2 divisors, whose sum is σ = 8687420124. Its totient is φ = 8687420122.

The previous prime is 8687420099. The next prime is 8687420149. The reversal of 8687420123 is 3210247868.

8687420123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8687420123 - 2¹⁰ = 8687419099 is a prime.

It is not a weakly prime, because it can be changed into another prime (8687420153) 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, 4343710061 + 4343710062.

It is an arithmetic number, because the mean of its divisors is an integer number (4343710062).

Almost surely, 2^8687420123 is an apocalyptic number.

8687420123 is a deficient number, since it is larger than the sum of its proper divisors (1).

8687420123 is an equidigital number, since it uses as much as digits as its factorization.

8687420123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 8687420123 is about 93206.3309169501. The cubic root of 8687420123 is about 2055.7183291999.

The spelling of 8687420123 in words is "eight billion, six hundred eighty-seven million, four hundred twenty thousand, one hundred twenty-three".