3938169 has 16 divisors (see below), whose sum is σ = 5712768. Its totient is φ = 2403072.

The previous prime is 3938167. The next prime is 3938197. The reversal of 3938169 is 9618393.

It is not a de Polignac number, because 3938169 - 2¹ = 3938167 is a prime.

It is a super-2 number, since 2×3938169² = 31018350145122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3938167) 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 15 ways as a sum of consecutive naturals, for example, 844 + ... + 2930.

It is an arithmetic number, because the mean of its divisors is an integer number (357048).

Almost surely, 2^3938169 is an apocalyptic number.

It is an amenable number.

3938169 is a deficient number, since it is larger than the sum of its proper divisors (1774599).

3938169 is a wasteful number, since it uses less digits than its factorization.

3938169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144.

The product of its digits is 34992, while the sum is 39.

The square root of 3938169 is about 1984.4820482937. The cubic root of 3938169 is about 157.9179325981.

The spelling of 3938169 in words is "three million, nine hundred thirty-eight thousand, one hundred sixty-nine".