7987882 has 12 divisors (see below), whose sum is σ = 13938210. Its totient is φ = 3423336.

The previous prime is 7987867. The next prime is 7987883. The reversal of 7987882 is 2887897.

It can be written as a sum of positive squares in only one way, i.e., 5764801 + 2223081 = 2401^2 + 1491^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (7987883) 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 5 ways as a sum of consecutive naturals, for example, 40657 + ... + 40852.

Almost surely, 2^7987882 is an apocalyptic number.

7987882 is a deficient number, since it is larger than the sum of its proper divisors (5950328).

7987882 is a wasteful number, since it uses less digits than its factorization.

7987882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81525 (or 81518 counting only the distinct ones).

The product of its digits is 451584, while the sum is 49.

The square root of 7987882 is about 2826.2841329208. The cubic root of 7987882 is about 199.8989656355.

The spelling of 7987882 in words is "seven million, nine hundred eighty-seven thousand, eight hundred eighty-two".