8966689987 has 8 divisors (see below), whose sum is σ = 9059676336. Its totient is φ = 8873873952.

The previous prime is 8966689973. The next prime is 8966689997. The reversal of 8966689987 is 7899866698.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8966689987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8966689997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64653 + ... + 148705.

It is an arithmetic number, because the mean of its divisors is an integer number (1132459542).

Almost surely, 2^8966689987 is an apocalyptic number.

8966689987 is a deficient number, since it is larger than the sum of its proper divisors (92986349).

8966689987 is a wasteful number, since it uses less digits than its factorization.

8966689987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85157.

The product of its digits is 564350976, while the sum is 76.

The square root of 8966689987 is about 94692.6078793905. The cubic root of 8966689987 is about 2077.5144424663.

The spelling of 8966689987 in words is "eight billion, nine hundred sixty-six million, six hundred eighty-nine thousand, nine hundred eighty-seven".