3990171 has 8 divisors (see below), whose sum is σ = 5600320. Its totient is φ = 2520072.

The previous prime is 3990169. The next prime is 3990179. The reversal of 3990171 is 1710993.

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

It is not a de Polignac number, because 3990171 - 2¹ = 3990169 is a prime.

It is a Duffinian number.

3990171 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3990179) 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, 34945 + ... + 35058.

It is an arithmetic number, because the mean of its divisors is an integer number (700040).

Almost surely, 2^3990171 is an apocalyptic number.

3990171 is a deficient number, since it is larger than the sum of its proper divisors (1610149).

3990171 is a wasteful number, since it uses less digits than its factorization.

3990171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70025.

The product of its (nonzero) digits is 1701, while the sum is 30.

The square root of 3990171 is about 1997.5412386231. The cubic root of 3990171 is about 158.6099771784.

The spelling of 3990171 in words is "three million, nine hundred ninety thousand, one hundred seventy-one".