8725220 has 24 divisors (see below), whose sum is σ = 20940864. Its totient is φ = 2991456.

The previous prime is 8725219. The next prime is 8725243. The reversal of 8725220 is 225278.

8725220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×8725220² = 152258928096800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8725220.

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, 31022 + ... + 31301.

It is an arithmetic number, because the mean of its divisors is an integer number (872536).

Almost surely, 2^8725220 is an apocalyptic number.

It is an amenable number.

8725220 is an abundant number, since it is smaller than the sum of its proper divisors (12215644).

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

8725220 is a wasteful number, since it uses less digits than its factorization.

8725220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62339 (or 62337 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 8725220 is about 2953.8483373389. The cubic root of 8725220 is about 205.8695564035.

The spelling of 8725220 in words is "eight million, seven hundred twenty-five thousand, two hundred twenty".