7870860 has 72 divisors (see below), whose sum is σ = 24242400. Its totient is φ = 2066688.

The previous prime is 7870823. The next prime is 7870867. The reversal of 7870860 is 680787.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (7870867) 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, 12841 + ... + 13439.

It is an arithmetic number, because the mean of its divisors is an integer number (336700).

Almost surely, 2^7870860 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 7870860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12121200).

7870860 is an abundant number, since it is smaller than the sum of its proper divisors (16371540).

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

7870860 is a wasteful number, since it uses less digits than its factorization.

7870860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687 (or 682 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 7870860 is about 2805.5053020802. The cubic root of 7870860 is about 198.9179901632.

The spelling of 7870860 in words is "seven million, eight hundred seventy thousand, eight hundred sixty".