87171753 has 12 divisors (see below), whose sum is σ = 122669808. Its totient is φ = 55055160.

The previous prime is 87171743. The next prime is 87171811. The reversal of 87171753 is 35717178.

It is not a de Polignac number, because 87171753 - 2⁴ = 87171737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87171713) 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 11 ways as a sum of consecutive naturals, for example, 39163 + ... + 41328.

It is an arithmetic number, because the mean of its divisors is an integer number (10222484).

Almost surely, 2^87171753 is an apocalyptic number.

It is an amenable number.

87171753 is a deficient number, since it is larger than the sum of its proper divisors (35498055).

87171753 is a wasteful number, since it uses less digits than its factorization.

87171753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80532 (or 80513 counting only the distinct ones).

The product of its digits is 41160, while the sum is 39.

The square root of 87171753 is about 9336.5814407630. The cubic root of 87171753 is about 443.3961588969.

It can be divided in two parts, 8717175 and 3, that added together give a palindrome (8717178).

The spelling of 87171753 in words is "eighty-seven million, one hundred seventy-one thousand, seven hundred fifty-three".