3965658 has 24 divisors (see below), whose sum is σ = 8428992. Its totient is φ = 1243584.

The previous prime is 3965653. The next prime is 3965659. The reversal of 3965658 is 8565693.

3965658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3965653) 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 11 ways as a sum of consecutive naturals, for example, 591 + ... + 2877.

It is an arithmetic number, because the mean of its divisors is an integer number (351208).

Almost surely, 2^3965658 is an apocalyptic number.

3965658 is an abundant number, since it is smaller than the sum of its proper divisors (4463334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3965658 is a wasteful number, since it uses less digits than its factorization.

3965658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326 (or 2309 counting only the distinct ones).

The product of its digits is 194400, while the sum is 42.

The square root of 3965658 is about 1991.3959927649. The cubic root of 3965658 is about 158.2845111399.

The spelling of 3965658 in words is "three million, nine hundred sixty-five thousand, six hundred fifty-eight".