8420512 has 24 divisors (see below), whose sum is σ = 16656192. Its totient is φ = 4190400.

The previous prime is 8420509. The next prime is 8420519. The reversal of 8420512 is 2150248.

It is not an unprimeable number, because it can be changed into a prime (8420519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8187 + ... + 9157.

It is an arithmetic number, because the mean of its divisors is an integer number (694008).

Almost surely, 2^8420512 is an apocalyptic number.

It is an amenable number.

8420512 is a deficient number, since it is larger than the sum of its proper divisors (8235680).

8420512 is a wasteful number, since it uses less digits than its factorization.

8420512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252 (or 1244 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 8420512 is about 2901.8118477944. The cubic root of 8420512 is about 203.4445997374. Note that the first 3 decimals are identical.

The spelling of 8420512 in words is "eight million, four hundred twenty thousand, five hundred twelve".