3965423 has 16 divisors (see below), whose sum is σ = 5049600. Its totient is φ = 3087000.

The previous prime is 3965419. The next prime is 3965441. The reversal of 3965423 is 3245693.

It is not a de Polignac number, because 3965423 - 2² = 3965419 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3965423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3965443) 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 15 ways as a sum of consecutive naturals, for example, 3248 + ... + 4298.

It is an arithmetic number, because the mean of its divisors is an integer number (315600).

Almost surely, 2^3965423 is an apocalyptic number.

3965423 is a deficient number, since it is larger than the sum of its proper divisors (1084177).

3965423 is a wasteful number, since it uses less digits than its factorization.

3965423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083 (or 1069 counting only the distinct ones).

The product of its digits is 19440, while the sum is 32.

The square root of 3965423 is about 1991.3369880560. The cubic root of 3965423 is about 158.2813844965.

The spelling of 3965423 in words is "three million, nine hundred sixty-five thousand, four hundred twenty-three".