8420487924 has 12 divisors (see below), whose sum is σ = 19647805184. Its totient is φ = 2806829304.

The previous prime is 8420487851. The next prime is 8420487941. The reversal of 8420487924 is 4297840248.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350853652 + ... + 350853675.

Almost surely, 2^8420487924 is an apocalyptic number.

It is an amenable number.

8420487924 is an abundant number, since it is smaller than the sum of its proper divisors (11227317260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8420487924 is a wasteful number, since it uses less digits than its factorization.

8420487924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701707334 (or 701707332 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 48.

The square root of 8420487924 is about 91763.2166175532. The cubic root of 8420487924 is about 2034.4440584041. Note that the first 3 decimals are identical.

The spelling of 8420487924 in words is "eight billion, four hundred twenty million, four hundred eighty-seven thousand, nine hundred twenty-four".