3906165 has 8 divisors (see below), whose sum is σ = 6249888. Its totient is φ = 2083280.

The previous prime is 3906151. The next prime is 3906169. The reversal of 3906165 is 5616093.

It is a happy number.

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

It is not a de Polignac number, because 3906165 - 2⁶ = 3906101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3906169) 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, 130191 + ... + 130220.

It is an arithmetic number, because the mean of its divisors is an integer number (781236).

Almost surely, 2^3906165 is an apocalyptic number.

It is an amenable number.

3906165 is a deficient number, since it is larger than the sum of its proper divisors (2343723).

3906165 is a wasteful number, since it uses less digits than its factorization.

3906165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260419.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 3906165 is about 1976.4020340002. The cubic root of 3906165 is about 157.4889889002.

It can be divided in two parts, 390 and 6165, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 3906165 in words is "three million, nine hundred six thousand, one hundred sixty-five".