86171428 has 24 divisors (see below), whose sum is σ = 175597632. Its totient is φ = 36233184.

The previous prime is 86171401. The next prime is 86171429. The reversal of 86171428 is 82417168.

It is not an unprimeable number, because it can be changed into a prime (86171429) 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, 27550 + ... + 30517.

It is an arithmetic number, because the mean of its divisors is an integer number (7316568).

Almost surely, 2^86171428 is an apocalyptic number.

It is an amenable number.

86171428 is an abundant number, since it is smaller than the sum of its proper divisors (89426204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86171428 is a wasteful number, since it uses less digits than its factorization.

86171428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58131 (or 58129 counting only the distinct ones).

The product of its digits is 21504, while the sum is 37.

The square root of 86171428 is about 9282.8566723827. The cubic root of 86171428 is about 441.6935899730.

The spelling of 86171428 in words is "eighty-six million, one hundred seventy-one thousand, four hundred twenty-eight".