87219485 has 8 divisors (see below), whose sum is σ = 104713560. Its totient is φ = 69742144.

The previous prime is 87219463. The next prime is 87219499. The reversal of 87219485 is 58491278.

It can be written as a sum of positive squares in 4 ways, for example, as 9972964 + 77246521 = 3158^2 + 8789^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 87219485 - 2⁶ = 87219421 is a prime.

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, 17759 + ... + 22131.

It is an arithmetic number, because the mean of its divisors is an integer number (13089195).

Almost surely, 2^87219485 is an apocalyptic number.

It is an amenable number.

87219485 is a deficient number, since it is larger than the sum of its proper divisors (17494075).

87219485 is a wasteful number, since it uses less digits than its factorization.

87219485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8367.

The product of its digits is 161280, while the sum is 44.

The square root of 87219485 is about 9339.1372727892. The cubic root of 87219485 is about 443.4770731954.

The spelling of 87219485 in words is "eighty-seven million, two hundred nineteen thousand, four hundred eighty-five".