8462987666 has 12 divisors (see below), whose sum is σ = 14767050078. Its totient is φ = 3626994672.

The previous prime is 8462987593. The next prime is 8462987677. The reversal of 8462987666 is 6667892648.

It can be written as a sum of positive squares in only one way, i.e., 7239457225 + 1223530441 = 85085^2 + 34979^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8462987599 and 8462987608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43178411 + ... + 43178606.

Almost surely, 2^8462987666 is an apocalyptic number.

8462987666 is a deficient number, since it is larger than the sum of its proper divisors (6304062412).

8462987666 is a wasteful number, since it uses less digits than its factorization.

8462987666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86357033 (or 86357026 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 62.

The square root of 8462987666 is about 91994.4980202621. The cubic root of 8462987666 is about 2037.8610531376.

The spelling of 8462987666 in words is "eight billion, four hundred sixty-two million, nine hundred eighty-seven thousand, six hundred sixty-six".