7987424 has 12 divisors (see below), whose sum is σ = 15725304. Its totient is φ = 3993696.

The previous prime is 7987423. The next prime is 7987439. The reversal of 7987424 is 4247897.

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 (7987423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124772 + ... + 124835.

It is an arithmetic number, because the mean of its divisors is an integer number (1310442).

Almost surely, 2^7987424 is an apocalyptic number.

It is an amenable number.

7987424 is a deficient number, since it is larger than the sum of its proper divisors (7737880).

7987424 is a wasteful number, since it uses less digits than its factorization.

7987424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249617 (or 249609 counting only the distinct ones).

The product of its digits is 112896, while the sum is 41.

The square root of 7987424 is about 2826.2031066433. The cubic root of 7987424 is about 199.8951450368.

The spelling of 7987424 in words is "seven million, nine hundred eighty-seven thousand, four hundred twenty-four".