7215248 has 20 divisors (see below), whose sum is σ = 14126700. Its totient is φ = 3569664.

The previous prime is 7215239. The next prime is 7215277. The reversal of 7215248 is 8425127.

It can be written as a sum of positive squares in 2 ways, for example, as 5607424 + 1607824 = 2368^2 + 1268^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7215248.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773 + ... + 3876.

It is an arithmetic number, because the mean of its divisors is an integer number (706335).

Almost surely, 2^7215248 is an apocalyptic number.

It is an amenable number.

7215248 is a deficient number, since it is larger than the sum of its proper divisors (6911452).

7215248 is a wasteful number, since it uses less digits than its factorization.

7215248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4754 (or 4748 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 7215248 is about 2686.1213673250. The cubic root of 7215248 is about 193.2340936050.

The spelling of 7215248 in words is "seven million, two hundred fifteen thousand, two hundred forty-eight".