3665473 has 4 divisors (see below), whose sum is σ = 4189120. Its totient is φ = 3141828.

The previous prime is 3665443. The next prime is 3665477. The reversal of 3665473 is 3745663.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3665473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3665477) 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 3 ways as a sum of consecutive naturals, for example, 261813 + ... + 261826.

It is an arithmetic number, because the mean of its divisors is an integer number (1047280).

Almost surely, 2^3665473 is an apocalyptic number.

It is an amenable number.

3665473 is a deficient number, since it is larger than the sum of its proper divisors (523647).

3665473 is an equidigital number, since it uses as much as digits as its factorization.

3665473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523646.

The product of its digits is 45360, while the sum is 34.

The square root of 3665473 is about 1914.5425040986. The cubic root of 3665473 is about 154.1854318851.

The spelling of 3665473 in words is "three million, six hundred sixty-five thousand, four hundred seventy-three".