87332889 has 16 divisors (see below), whose sum is σ = 133322112. Its totient is φ = 49813248.

The previous prime is 87332887. The next prime is 87332897. The reversal of 87332889 is 98823378.

It is not a de Polignac number, because 87332889 - 2¹ = 87332887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87332887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8947 + ... + 15959.

It is an arithmetic number, because the mean of its divisors is an integer number (8332632).

Almost surely, 2^87332889 is an apocalyptic number.

It is an amenable number.

87332889 is a deficient number, since it is larger than the sum of its proper divisors (45989223).

87332889 is a wasteful number, since it uses less digits than its factorization.

87332889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7616.

The product of its digits is 580608, while the sum is 48.

The square root of 87332889 is about 9345.2067392862. The cubic root of 87332889 is about 443.6691949937.

The spelling of 87332889 in words is "eighty-seven million, three hundred thirty-two thousand, eight hundred eighty-nine".