3909243 has 8 divisors (see below), whose sum is σ = 5613328. Its totient is φ = 2405664.

The previous prime is 3909233. The next prime is 3909247. The reversal of 3909243 is 3429093.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3909243 - 2⁵ = 3909211 is a prime.

It is a Duffinian number.

3909243 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3909243.

It is not an unprimeable number, because it can be changed into a prime (3909247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50080 + ... + 50157.

It is an arithmetic number, because the mean of its divisors is an integer number (701666).

Almost surely, 2^3909243 is an apocalyptic number.

3909243 is a deficient number, since it is larger than the sum of its proper divisors (1704085).

3909243 is a wasteful number, since it uses less digits than its factorization.

3909243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100253.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 3909243 is about 1977.1805683852. The cubic root of 3909243 is about 157.5303443676.

The spelling of 3909243 in words is "three million, nine hundred nine thousand, two hundred forty-three".