280171087 has 8 divisors (see below), whose sum is σ = 330524672. Its totient is φ = 232399800.

The previous prime is 280171079. The next prime is 280171097. The reversal of 280171087 is 780171082.

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 280171087 - 2³ = 280171079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280171097) 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, 645339 + ... + 645772.

It is an arithmetic number, because the mean of its divisors is an integer number (41315584).

Almost surely, 2^280171087 is an apocalyptic number.

280171087 is a deficient number, since it is larger than the sum of its proper divisors (50353585).

280171087 is a wasteful number, since it uses less digits than its factorization.

280171087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291149.

The product of its (nonzero) digits is 6272, while the sum is 34.

The square root of 280171087 is about 16738.3119519263. The cubic root of 280171087 is about 654.3464817940.

The spelling of 280171087 in words is "two hundred eighty million, one hundred seventy-one thousand, eighty-seven".