986005171 has 8 divisors (see below), whose sum is σ = 1047424400. Its totient is φ = 925538400.

The previous prime is 986005169. The next prime is 986005213. The reversal of 986005171 is 171500689.

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

It is a 5-Lehmer number, since φ(986005171) divides (986005171-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 986005171 - 2¹ = 986005169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 986005171.

It is not an unprimeable number, because it can be changed into a prime (986005571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235980 + ... + 240121.

It is an arithmetic number, because the mean of its divisors is an integer number (130928050).

Almost surely, 2^986005171 is an apocalyptic number.

986005171 is a deficient number, since it is larger than the sum of its proper divisors (61419229).

986005171 is a wasteful number, since it uses less digits than its factorization.

986005171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476229.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 986005171 is about 31400.7192752013. The cubic root of 986005171 is about 995.3131245168.

The spelling of 986005171 in words is "nine hundred eighty-six million, five thousand, one hundred seventy-one".