7870224 has 40 divisors (see below), whose sum is σ = 20525472. Its totient is φ = 2598400.

The previous prime is 7870211. The next prime is 7870229. The reversal of 7870224 is 4220787.

It is a d-powerful number, because it can be written as 7 + 8 + 7⁸ + 0 + 2¹³ + 2²¹ + 4³ .

It is a junction number, because it is equal to n+sod(n) for n = 7870191 and 7870200.

It is not an unprimeable number, because it can be changed into a prime (7870229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4699 + ... + 6149.

Almost surely, 2^7870224 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 7870224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10262736).

7870224 is an abundant number, since it is smaller than the sum of its proper divisors (12655248).

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

7870224 is a wasteful number, since it uses less digits than its factorization.

7870224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575 (or 1569 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 7870224 is about 2805.3919512254. The cubic root of 7870224 is about 198.9126322036.

The spelling of 7870224 in words is "seven million, eight hundred seventy thousand, two hundred twenty-four".