8624420 has 24 divisors (see below), whose sum is σ = 20698944. Its totient is φ = 2956896.

The previous prime is 8624393. The next prime is 8624449. The reversal of 8624420 is 244268.

It is a self number, because there is not a number n which added to its sum of digits gives 8624420.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30662 + ... + 30941.

It is an arithmetic number, because the mean of its divisors is an integer number (862456).

Almost surely, 2^8624420 is an apocalyptic number.

It is an amenable number.

8624420 is an abundant number, since it is smaller than the sum of its proper divisors (12074524).

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

8624420 is a wasteful number, since it uses less digits than its factorization.

8624420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61619 (or 61617 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 8624420 is about 2936.7362837000. The cubic root of 8624420 is about 205.0736994579.

Adding to 8624420 its reverse (244268), we get a palindrome (8868688).

The spelling of 8624420 in words is "eight million, six hundred twenty-four thousand, four hundred twenty".