87966616 has 8 divisors (see below), whose sum is σ = 164937420. Its totient is φ = 43983304.

The previous prime is 87966611. The next prime is 87966617. The reversal of 87966616 is 61666978.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 87966616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87966611) by changing a digit.

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, 5497906 + ... + 5497921.

Almost surely, 2^87966616 is an apocalyptic number.

It is an amenable number.

87966616 is a deficient number, since it is larger than the sum of its proper divisors (76970804).

87966616 is a wasteful number, since it uses less digits than its factorization.

87966616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10995833 (or 10995829 counting only the distinct ones).

The product of its digits is 653184, while the sum is 49.

The square root of 87966616 is about 9379.0519776788. The cubic root of 87966616 is about 444.7397645215.

The spelling of 87966616 in words is "eighty-seven million, nine hundred sixty-six thousand, six hundred sixteen".