3565493 has 4 divisors (see below), whose sum is σ = 3569280. Its totient is φ = 3561708.

The previous prime is 3565487. The next prime is 3565531. The reversal of 3565493 is 3945653.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3945653 = 29 ⋅136057.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3565493 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 (3565423) 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, 746 + ... + 2772.

It is an arithmetic number, because the mean of its divisors is an integer number (892320).

Almost surely, 2^3565493 is an apocalyptic number.

It is an amenable number.

3565493 is a deficient number, since it is larger than the sum of its proper divisors (3787).

3565493 is a wasteful number, since it uses less digits than its factorization.

3565493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3786.

The product of its digits is 48600, while the sum is 35.

The square root of 3565493 is about 1888.2513074271. The cubic root of 3565493 is about 152.7706275833.

The spelling of 3565493 in words is "three million, five hundred sixty-five thousand, four hundred ninety-three".