87168523 has 8 divisors (see below), whose sum is σ = 98814800. Its totient is φ = 76228128.

The previous prime is 87168493. The next prime is 87168527. The reversal of 87168523 is 32586178.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87168523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87168527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176208 + ... + 176701.

It is an arithmetic number, because the mean of its divisors is an integer number (12351850).

Almost surely, 2^87168523 is an apocalyptic number.

87168523 is a deficient number, since it is larger than the sum of its proper divisors (11646277).

87168523 is a wasteful number, since it uses less digits than its factorization.

87168523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352941.

The product of its digits is 80640, while the sum is 40.

The square root of 87168523 is about 9336.4084636438. The cubic root of 87168523 is about 443.3906824009.

The spelling of 87168523 in words is "eighty-seven million, one hundred sixty-eight thousand, five hundred twenty-three".