8651860 has 48 divisors (see below), whose sum is σ = 21490560. Its totient is φ = 2862720.

The previous prime is 8651857. The next prime is 8651869. The reversal of 8651860 is 681568.

It is a happy number.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8651869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2995 + ... + 5125.

It is an arithmetic number, because the mean of its divisors is an integer number (447720).

Almost surely, 2^8651860 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 8651860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10745280).

8651860 is an abundant number, since it is smaller than the sum of its proper divisors (12838700).

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

8651860 is a wasteful number, since it uses less digits than its factorization.

8651860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176 (or 2174 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 8651860 is about 2941.4044264603. The cubic root of 8651860 is about 205.2909610193.

The spelling of 8651860 in words is "eight million, six hundred fifty-one thousand, eight hundred sixty".