8707220 has 48 divisors (see below), whose sum is σ = 19111680. Its totient is φ = 3329664.

The previous prime is 8707219. The next prime is 8707241. The reversal of 8707220 is 227078.

It is a self number, because there is not a number n which added to its sum of digits gives 8707220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55382 + ... + 55538.

It is an arithmetic number, because the mean of its divisors is an integer number (398160).

Almost surely, 2^8707220 is an apocalyptic number.

It is an amenable number.

8707220 is an abundant number, since it is smaller than the sum of its proper divisors (10404460).

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

8707220 is a wasteful number, since it uses less digits than its factorization.

8707220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 8707220 is about 2950.7998915548. The cubic root of 8707220 is about 205.7278903223.

The spelling of 8707220 in words is "eight million, seven hundred seven thousand, two hundred twenty".