87168429 has 24 divisors (see below), whose sum is σ = 129074400. Its totient is φ = 56668320.

The previous prime is 87168359. The next prime is 87168437. The reversal of 87168429 is 92486178.

It is not a de Polignac number, because 87168429 - 2⁹ = 87167917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87168449) 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 23 ways as a sum of consecutive naturals, for example, 73219 + ... + 74399.

It is an arithmetic number, because the mean of its divisors is an integer number (5378100).

Almost surely, 2^87168429 is an apocalyptic number.

It is an amenable number.

87168429 is a deficient number, since it is larger than the sum of its proper divisors (41905971).

87168429 is a wasteful number, since it uses less digits than its factorization.

87168429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385 (or 1382 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 87168429 is about 9336.4034295868. The cubic root of 87168429 is about 443.3905230209.

The spelling of 87168429 in words is "eighty-seven million, one hundred sixty-eight thousand, four hundred twenty-nine".