87523471 has 8 divisors (see below), whose sum is σ = 101667104. Its totient is φ = 73789920.

The previous prime is 87523459. The next prime is 87523477. The reversal of 87523471 is 17432578.

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 87523471 - 2⁵ = 87523439 is a prime.

It is a super-3 number, since 3×87523471³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87523471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87523477) 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, 102060 + ... + 102913.

It is an arithmetic number, because the mean of its divisors is an integer number (12708388).

Almost surely, 2^87523471 is an apocalyptic number.

87523471 is a deficient number, since it is larger than the sum of its proper divisors (14143633).

87523471 is a wasteful number, since it uses less digits than its factorization.

87523471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205041.

The product of its digits is 47040, while the sum is 37.

The square root of 87523471 is about 9355.3979605359. The cubic root of 87523471 is about 443.9916925508.

The spelling of 87523471 in words is "eighty-seven million, five hundred twenty-three thousand, four hundred seventy-one".