87568261 has 8 divisors (see below), whose sum is σ = 96739200. Its totient is φ = 78599040.

The previous prime is 87568259. The next prime is 87568277. The reversal of 87568261 is 16286578.

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 87568261 - 2¹ = 87568259 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 (87568861) 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, 49516 + ... + 51253.

It is an arithmetic number, because the mean of its divisors is an integer number (12092400).

Almost surely, 2^87568261 is an apocalyptic number.

It is an amenable number.

87568261 is a deficient number, since it is larger than the sum of its proper divisors (9170939).

87568261 is a wasteful number, since it uses less digits than its factorization.

87568261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100859.

The product of its digits is 161280, while the sum is 43.

The square root of 87568261 is about 9357.7914595272. The cubic root of 87568261 is about 444.0674169874.

The spelling of 87568261 in words is "eighty-seven million, five hundred sixty-eight thousand, two hundred sixty-one".