7870020 has 48 divisors (see below), whose sum is σ = 22800960. Its totient is φ = 2025856.

The previous prime is 7870019. The next prime is 7870081. The reversal of 7870020 is 200787.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 522 + ... + 4001.

It is an arithmetic number, because the mean of its divisors is an integer number (475020).

Almost surely, 2^7870020 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 7870020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11400480).

7870020 is an abundant number, since it is smaller than the sum of its proper divisors (14930940).

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

7870020 is a wasteful number, since it uses less digits than its factorization.

7870020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4564 (or 4562 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 7870020 is about 2805.3555924339. The cubic root of 7870020 is about 198.9109135517.

The spelling of 7870020 in words is "seven million, eight hundred seventy thousand, twenty".