3665423 has 4 divisors (see below), whose sum is σ = 3858360. Its totient is φ = 3472488.

The previous prime is 3665419. The next prime is 3665437. The reversal of 3665423 is 3245663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3245663 = 191 ⋅16993.

It is a cyclic number.

It is not a de Polignac number, because 3665423 - 2² = 3665419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3665413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96440 + ... + 96477.

It is an arithmetic number, because the mean of its divisors is an integer number (964590).

Almost surely, 2^3665423 is an apocalyptic number.

3665423 is a deficient number, since it is larger than the sum of its proper divisors (192937).

3665423 is a wasteful number, since it uses less digits than its factorization.

3665423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192936.

The product of its digits is 12960, while the sum is 29.

The square root of 3665423 is about 1914.5294461042. The cubic root of 3665423 is about 154.1847308108.

The spelling of 3665423 in words is "three million, six hundred sixty-five thousand, four hundred twenty-three".