8587420123 has 4 divisors (see below), whose sum is σ = 8590435048. Its totient is φ = 8584405200.

The previous prime is 8587420091. The next prime is 8587420129. The reversal of 8587420123 is 3210247858.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8587420123 - 2⁵ = 8587420091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8587420129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1503186 + ... + 1508887.

It is an arithmetic number, because the mean of its divisors is an integer number (2147608762).

Almost surely, 2^8587420123 is an apocalyptic number.

8587420123 is a deficient number, since it is larger than the sum of its proper divisors (3014925).

8587420123 is a wasteful number, since it uses less digits than its factorization.

8587420123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3014924.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 8587420123 is about 92668.3339820027. Note that the first 3 decimals coincide. The cubic root of 8587420123 is about 2047.8001484563.

The spelling of 8587420123 in words is "eight billion, five hundred eighty-seven million, four hundred twenty thousand, one hundred twenty-three".