8579720 has 32 divisors (see below), whose sum is σ = 19422720. Its totient is φ = 3410880.

The previous prime is 8579699. The next prime is 8579731. The reversal of 8579720 is 279758.

It is a super-2 number, since 2×8579720² = 147223190556800, which contains 22 as substring.

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, 7079 + ... + 8201.

It is an arithmetic number, because the mean of its divisors is an integer number (606960).

Almost surely, 2^8579720 is an apocalyptic number.

It is an amenable number.

8579720 is an abundant number, since it is smaller than the sum of its proper divisors (10843000).

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

8579720 is a wasteful number, since it uses less digits than its factorization.

8579720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325 (or 1321 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 8579720 is about 2929.1159075735. The cubic root of 8579720 is about 204.7187895177.

Adding to 8579720 its sum of digits (38), we get a palindrome (8579758).

The spelling of 8579720 in words is "eight million, five hundred seventy-nine thousand, seven hundred twenty".