8865870 has 64 divisors (see below), whose sum is σ = 23224320. Its totient is φ = 2153088.

The previous prime is 8865859. The next prime is 8865877. The reversal of 8865870 is 785688.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8865877) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49441 + ... + 49619.

It is an arithmetic number, because the mean of its divisors is an integer number (362880).

Almost surely, 2^8865870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8865870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11612160).

8865870 is an abundant number, since it is smaller than the sum of its proper divisors (14358450).

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

8865870 is a wasteful number, since it uses less digits than its factorization.

8865870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329.

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 8865870 is about 2977.5610824969. The cubic root of 8865870 is about 206.9698665558.

The spelling of 8865870 in words is "eight million, eight hundred sixty-five thousand, eight hundred seventy".