8670520 has 48 divisors (see below), whose sum is σ = 20247480. Its totient is φ = 3339840.

The previous prime is 8670509. The next prime is 8670523. The reversal of 8670520 is 250768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8670523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122085 + ... + 122155.

Almost surely, 2^8670520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8670520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10123740).

8670520 is an abundant number, since it is smaller than the sum of its proper divisors (11576960).

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

8670520 is a wasteful number, since it uses less digits than its factorization.

8670520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 8670520 is about 2944.5746721725. The cubic root of 8670520 is about 205.4384429340.

The spelling of 8670520 in words is "eight million, six hundred seventy thousand, five hundred twenty".