8787866 has 4 divisors (see below), whose sum is σ = 13181802. Its totient is φ = 4393932.

The previous prime is 8787859. The next prime is 8787887. The reversal of 8787866 is 6687878.

It is a happy number.

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., 6869641 + 1918225 = 2621^2 + 1385^2 .

It is an unprimeable number.

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, 2196965 + ... + 2196968.

Almost surely, 2^8787866 is an apocalyptic number.

8787866 is a deficient number, since it is larger than the sum of its proper divisors (4393936).

8787866 is a wasteful number, since it uses less digits than its factorization.

8787866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4393935.

The product of its digits is 903168, while the sum is 50.

The square root of 8787866 is about 2964.4335040611. The cubic root of 8787866 is about 206.3610878761.

The spelling of 8787866 in words is "eight million, seven hundred eighty-seven thousand, eight hundred sixty-six".