7987802 has 4 divisors (see below), whose sum is σ = 11981706. Its totient is φ = 3993900.

The previous prime is 7987799. The next prime is 7987813. The reversal of 7987802 is 2087897.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7513081 + 474721 = 2741^2 + 689^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7987802.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1996949 + ... + 1996952.

Almost surely, 2^7987802 is an apocalyptic number.

7987802 is a deficient number, since it is larger than the sum of its proper divisors (3993904).

7987802 is a wasteful number, since it uses less digits than its factorization.

7987802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993903.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 7987802 is about 2826.2699800267. The cubic root of 7987802 is about 199.8982982926.

The spelling of 7987802 in words is "seven million, nine hundred eighty-seven thousand, eight hundred two".