7987924 has 12 divisors (see below), whose sum is σ = 15975904. Its totient is φ = 3423384.

The previous prime is 7987921. The next prime is 7987957. The reversal of 7987924 is 4297897.

7987924 is an admirable number.

It is a d-powerful number, because it can be written as 7⁶ + 9³ + 8 + 7⁸ + 9⁴ + 2²¹ + 4⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7987921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142614 + ... + 142669.

Almost surely, 2^7987924 is an apocalyptic number.

It is an amenable number.

7987924 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7987924 is a wasteful number, since it uses less digits than its factorization.

7987924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285294 (or 285292 counting only the distinct ones).

The product of its digits is 254016, while the sum is 46.

The square root of 7987924 is about 2826.2915631619. The cubic root of 7987924 is about 199.8993159888.

It can be divided in two parts, 7987 and 924, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 7987924 in words is "seven million, nine hundred eighty-seven thousand, nine hundred twenty-four".