3928165 has 8 divisors (see below), whose sum is σ = 4866048. Its totient is φ = 3041040.

The previous prime is 3928163. The next prime is 3928189. The reversal of 3928165 is 5618293.

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

It is not a de Polignac number, because 3928165 - 2¹ = 3928163 is a prime.

It is a Duffinian number.

3928165 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3928165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3928163) 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, 12517 + ... + 12826.

It is an arithmetic number, because the mean of its divisors is an integer number (608256).

Almost surely, 2^3928165 is an apocalyptic number.

It is an amenable number.

3928165 is a deficient number, since it is larger than the sum of its proper divisors (937883).

3928165 is a wasteful number, since it uses less digits than its factorization.

3928165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25379.

The product of its digits is 12960, while the sum is 34.

The square root of 3928165 is about 1981.9598885951. The cubic root of 3928165 is about 157.7841013174.

The spelling of 3928165 in words is "three million, nine hundred twenty-eight thousand, one hundred sixty-five".