87959521 has 8 divisors (see below), whose sum is σ = 98844480. Its totient is φ = 77662992.

The previous prime is 87959497. The next prime is 87959533. The reversal of 87959521 is 12595978.

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 87959521 - 2⁹ = 87959009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87959551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146791 + ... + 147388.

It is an arithmetic number, because the mean of its divisors is an integer number (12355560).

Almost surely, 2^87959521 is an apocalyptic number.

It is an amenable number.

87959521 is a deficient number, since it is larger than the sum of its proper divisors (10884959).

87959521 is a wasteful number, since it uses less digits than its factorization.

87959521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294215.

The product of its digits is 226800, while the sum is 46.

The square root of 87959521 is about 9378.6737335297. The cubic root of 87959521 is about 444.7278072828.

The spelling of 87959521 in words is "eighty-seven million, nine hundred fifty-nine thousand, five hundred twenty-one".