4165646 has 12 divisors (see below), whose sum is σ = 6638568. Its totient is φ = 1960032.

The previous prime is 4165643. The next prime is 4165661. The reversal of 4165646 is 6465614.

4165646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4165643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3026 + ... + 4181.

It is an arithmetic number, because the mean of its divisors is an integer number (553214).

Almost surely, 2^4165646 is an apocalyptic number.

4165646 is a deficient number, since it is larger than the sum of its proper divisors (2472922).

4165646 is a wasteful number, since it uses less digits than its factorization.

4165646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7243 (or 7226 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 4165646 is about 2040.9914257537. The cubic root of 4165646 is about 160.9017571235.

Subtracting from 4165646 its sum of digits (32), we obtain a palindrome (4165614).

Subtracting 4165646 from its reverse (6465614), we obtain a cube (2299968 = 132³).

The spelling of 4165646 in words is "four million, one hundred sixty-five thousand, six hundred forty-six".