3678443 has 4 divisors (see below), whose sum is σ = 3894840. Its totient is φ = 3462048.

The previous prime is 3678431. The next prime is 3678461. The reversal of 3678443 is 3448763.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3448763 = 53 ⋅65071.

It is a cyclic number.

It is not a de Polignac number, because 3678443 - 2²⁰ = 2629867 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 3³ + 6³ + 7 + 8⁷ + 4⁵ + 4¹⁰ + 3¹² .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3678043) 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, 108173 + ... + 108206.

It is an arithmetic number, because the mean of its divisors is an integer number (973710).

Almost surely, 2^3678443 is an apocalyptic number.

3678443 is a deficient number, since it is larger than the sum of its proper divisors (216397).

3678443 is a wasteful number, since it uses less digits than its factorization.

3678443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216396.

The product of its digits is 48384, while the sum is 35.

The square root of 3678443 is about 1917.9267452121. The cubic root of 3678443 is about 154.3670756531.

The spelling of 3678443 in words is "three million, six hundred seventy-eight thousand, four hundred forty-three".