3943369 has 4 divisors (see below), whose sum is σ = 3968644. Its totient is φ = 3918096.

The previous prime is 3943367. The next prime is 3943397. The reversal of 3943369 is 9633493.

3943369 = T₁₄₁ + T₁₄₂ + ... + T₂₉₇.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1729225 + 2214144 = 1315^2 + 1488^2 .

It is a cyclic number.

It is not a de Polignac number, because 3943369 - 2¹ = 3943367 is a prime.

It is a super-2 number, since 2×3943369² = 31100318140322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3943367) 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, 12402 + ... + 12715.

It is an arithmetic number, because the mean of its divisors is an integer number (992161).

Almost surely, 2^3943369 is an apocalyptic number.

It is an amenable number.

3943369 is a deficient number, since it is larger than the sum of its proper divisors (25275).

3943369 is a wasteful number, since it uses less digits than its factorization.

3943369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25274.

The product of its digits is 52488, while the sum is 37.

The square root of 3943369 is about 1985.7917816327. The cubic root of 3943369 is about 157.9874075314.

The spelling of 3943369 in words is "three million, nine hundred forty-three thousand, three hundred sixty-nine".