7987224 has 32 divisors (see below), whose sum is σ = 22821120. Its totient is φ = 2282016.

The previous prime is 7987223. The next prime is 7987241. The reversal of 7987224 is 4227897.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7987223) 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, 23604 + ... + 23939.

It is an arithmetic number, because the mean of its divisors is an integer number (713160).

Almost surely, 2^7987224 is an apocalyptic number.

It is an amenable number.

7987224 is an abundant number, since it is smaller than the sum of its proper divisors (14833896).

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

7987224 is a wasteful number, since it uses less digits than its factorization.

7987224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47559 (or 47555 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 7987224 is about 2826.1677232606. The cubic root of 7987224 is about 199.8934766072.

The spelling of 7987224 in words is "seven million, nine hundred eighty-seven thousand, two hundred twenty-four".