8459920 has 40 divisors (see below), whose sum is σ = 22480704. Its totient is φ = 2900352.

The previous prime is 8459917. The next prime is 8459933. The reversal of 8459920 is 299548.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 8459920.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6994 + ... + 8113.

Almost surely, 2^8459920 is an apocalyptic number.

8459920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8459920 is an abundant number, since it is smaller than the sum of its proper divisors (14020784).

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

8459920 is a wasteful number, since it uses less digits than its factorization.

8459920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15127 (or 15121 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 8459920 is about 2908.5941621340. The cubic root of 8459920 is about 203.7614795243.

The spelling of 8459920 in words is "eight million, four hundred fifty-nine thousand, nine hundred twenty".