87281382 has 8 divisors (see below), whose sum is σ = 174562776. Its totient is φ = 29093792.

The previous prime is 87281377. The next prime is 87281393. The reversal of 87281382 is 28318278.

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

87281382 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 87281382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7273443 + ... + 7273454.

It is an arithmetic number, because the mean of its divisors is an integer number (21820347).

Almost surely, 2^87281382 is an apocalyptic number.

87281382 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87281382 is a wasteful number, since it uses less digits than its factorization.

87281382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14546902.

The product of its digits is 43008, while the sum is 39.

The square root of 87281382 is about 9342.4505350577. The cubic root of 87281382 is about 443.5819557588.

The spelling of 87281382 in words is "eighty-seven million, two hundred eighty-one thousand, three hundred eighty-two".