3989173 has 4 divisors (see below), whose sum is σ = 4117888. Its totient is φ = 3860460.

The previous prime is 3989171. The next prime is 3989191. The reversal of 3989173 is 3719893.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3719893 = 617 ⋅6029.

It is a cyclic number.

It is not a de Polignac number, because 3989173 - 2¹ = 3989171 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3989171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64311 + ... + 64372.

It is an arithmetic number, because the mean of its divisors is an integer number (1029472).

Almost surely, 2^3989173 is an apocalyptic number.

It is an amenable number.

3989173 is a deficient number, since it is larger than the sum of its proper divisors (128715).

3989173 is a wasteful number, since it uses less digits than its factorization.

3989173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128714.

The product of its digits is 40824, while the sum is 40.

The square root of 3989173 is about 1997.2914158930. The cubic root of 3989173 is about 158.5967525190.

The spelling of 3989173 in words is "three million, nine hundred eighty-nine thousand, one hundred seventy-three".