87282321 has 8 divisors (see below), whose sum is σ = 133001664. Its totient is φ = 49875600.

The previous prime is 87282319. The next prime is 87282323. The reversal of 87282321 is 12328278.

It is an interprime number because it is at equal distance from previous prime (87282319) and next prime (87282323).

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

It is not a de Polignac number, because 87282321 - 2¹ = 87282319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87282323) 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 in 7 ways as a sum of consecutive naturals, for example, 2078130 + ... + 2078171.

It is an arithmetic number, because the mean of its divisors is an integer number (16625208).

Almost surely, 2^87282321 is an apocalyptic number.

It is an amenable number.

87282321 is a deficient number, since it is larger than the sum of its proper divisors (45719343).

87282321 is a wasteful number, since it uses less digits than its factorization.

87282321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4156311.

The product of its digits is 10752, while the sum is 33.

The square root of 87282321 is about 9342.5007894032. The cubic root of 87282321 is about 443.5835464836.

The spelling of 87282321 in words is "eighty-seven million, two hundred eighty-two thousand, three hundred twenty-one".