8620870 has 48 divisors (see below), whose sum is σ = 17462160. Its totient is φ = 3055104.

The previous prime is 8620861. The next prime is 8620873. The reversal of 8620870 is 780268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8620873) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54832 + ... + 54988.

It is an arithmetic number, because the mean of its divisors is an integer number (363795).

Almost surely, 2^8620870 is an apocalyptic number.

8620870 is an abundant number, since it is smaller than the sum of its proper divisors (8841290).

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

8620870 is a wasteful number, since it uses less digits than its factorization.

8620870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 8620870 is about 2936.1318090304. The cubic root of 8620870 is about 205.0455579889.

The spelling of 8620870 in words is "eight million, six hundred twenty thousand, eight hundred seventy".