87666332 has 24 divisors (see below), whose sum is σ = 165853632. Its totient is φ = 40305600.

The previous prime is 87666311. The next prime is 87666347. The reversal of 87666332 is 23366678.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 87666332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10982 + ... + 17202.

It is an arithmetic number, because the mean of its divisors is an integer number (6910568).

Almost surely, 2^87666332 is an apocalyptic number.

It is an amenable number.

87666332 is a deficient number, since it is larger than the sum of its proper divisors (78187300).

87666332 is a wasteful number, since it uses less digits than its factorization.

87666332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6509 (or 6507 counting only the distinct ones).

The product of its digits is 217728, while the sum is 41.

The square root of 87666332 is about 9363.0300651018. The cubic root of 87666332 is about 444.2331310922.

The spelling of 87666332 in words is "eighty-seven million, six hundred sixty-six thousand, three hundred thirty-two".