3805243 has 4 divisors (see below), whose sum is σ = 4097968. Its totient is φ = 3512520.

The previous prime is 3805237. The next prime is 3805253. The reversal of 3805243 is 3425083.

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

It is a cyclic number.

It is not a de Polignac number, because 3805243 - 2⁵ = 3805211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3805223) 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, 146343 + ... + 146368.

It is an arithmetic number, because the mean of its divisors is an integer number (1024492).

Almost surely, 2^3805243 is an apocalyptic number.

3805243 is a deficient number, since it is larger than the sum of its proper divisors (292725).

3805243 is a wasteful number, since it uses less digits than its factorization.

3805243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292724.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 3805243 is about 1950.7032065386. The cubic root of 3805243 is about 156.1208109747.

The spelling of 3805243 in words is "three million, eight hundred five thousand, two hundred forty-three".