8487866 has 4 divisors (see below), whose sum is σ = 12731802. Its totient is φ = 4243932.

The previous prime is 8487863. The next prime is 8487881. The reversal of 8487866 is 6687848.

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., 8439025 + 48841 = 2905^2 + 221^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8487866.

It is not an unprimeable number, because it can be changed into a prime (8487863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121965 + ... + 2121968.

Almost surely, 2^8487866 is an apocalyptic number.

8487866 is a deficient number, since it is larger than the sum of its proper divisors (4243936).

8487866 is a wasteful number, since it uses less digits than its factorization.

8487866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243935.

The product of its digits is 516096, while the sum is 47.

The square root of 8487866 is about 2913.3942404007. The cubic root of 8487866 is about 203.9855974710.

The spelling of 8487866 in words is "eight million, four hundred eighty-seven thousand, eight hundred sixty-six".