3658243 has 4 divisors (see below), whose sum is σ = 3662848. Its totient is φ = 3653640.

The previous prime is 3658211. The next prime is 3658283. The reversal of 3658243 is 3428563.

3658243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3658243 - 2⁵ = 3658211 is a prime.

It is a Duffinian number.

3658243 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3658283) 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 3 ways as a sum of consecutive naturals, for example, 771 + ... + 2812.

It is an arithmetic number, because the mean of its divisors is an integer number (915712).

Almost surely, 2^3658243 is an apocalyptic number.

3658243 is a deficient number, since it is larger than the sum of its proper divisors (4605).

3658243 is a wasteful number, since it uses less digits than its factorization.

3658243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4604.

The product of its digits is 17280, while the sum is 31.

The square root of 3658243 is about 1912.6533925414. The cubic root of 3658243 is about 154.0839902779.

The spelling of 3658243 in words is "three million, six hundred fifty-eight thousand, two hundred forty-three".