8427047420 has 36 divisors (see below), whose sum is σ = 19451859672. Its totient is φ = 3064380000.

The previous prime is 8427047417. The next prime is 8427047423. The reversal of 8427047420 is 247407248.

It is an interprime number because it is at equal distance from previous prime (8427047417) and next prime (8427047423).

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8427047423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1738706 + ... + 1743545.

Almost surely, 2^8427047420 is an apocalyptic number.

It is an amenable number.

8427047420 is an abundant number, since it is smaller than the sum of its proper divisors (11024812252).

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

8427047420 is a wasteful number, since it uses less digits than its factorization.

8427047420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3482282 (or 3482269 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 38.

The square root of 8427047420 is about 91798.9510833321. The cubic root of 8427047420 is about 2034.9721934355.

The spelling of 8427047420 in words is "eight billion, four hundred twenty-seven million, forty-seven thousand, four hundred twenty".