3653243 has 4 divisors (see below), whose sum is σ = 3985368. Its totient is φ = 3321120.

The previous prime is 3653227. The next prime is 3653267. The reversal of 3653243 is 3423563.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3653243 - 2⁴ = 3653227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3653203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166046 + ... + 166067.

It is an arithmetic number, because the mean of its divisors is an integer number (996342).

Almost surely, 2^3653243 is an apocalyptic number.

3653243 is a deficient number, since it is larger than the sum of its proper divisors (332125).

3653243 is a wasteful number, since it uses less digits than its factorization.

3653243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332124.

The product of its digits is 6480, while the sum is 26.

The square root of 3653243 is about 1911.3458609053. The cubic root of 3653243 is about 154.0137588202.

The spelling of 3653243 in words is "three million, six hundred fifty-three thousand, two hundred forty-three".