8700870 has 64 divisors (see below), whose sum is σ = 22057920. Its totient is φ = 2193408.

The previous prime is 8700869. The next prime is 8700871. The reversal of 8700870 is 780078.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8700869) and next prime (8700871).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8700871) 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, 63442 + ... + 63578.

It is an arithmetic number, because the mean of its divisors is an integer number (344655).

Almost surely, 2^8700870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8700870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11028960).

8700870 is an abundant number, since it is smaller than the sum of its proper divisors (13357050).

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

8700870 is a wasteful number, since it uses less digits than its factorization.

8700870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249.

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 8700870 is about 2949.7237158758. The cubic root of 8700870 is about 205.6778670925.

It can be divided in two parts, 87008 and 70, that added together give a palindrome (87078).

The spelling of 8700870 in words is "eight million, seven hundred thousand, eight hundred seventy".