3994873 has 4 divisors (see below), whose sum is σ = 4043088. Its totient is φ = 3946660.

The previous prime is 3994849. The next prime is 3994891. The reversal of 3994873 is 3784993.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3784993 = 29 ⋅130517.

It is a cyclic number.

It is not a de Polignac number, because 3994873 - 2⁵ = 3994841 is a prime.

It is a super-2 number, since 2×3994873² = 31918020572258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3994843) 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, 23983 + ... + 24148.

It is an arithmetic number, because the mean of its divisors is an integer number (1010772).

Almost surely, 2^3994873 is an apocalyptic number.

It is an amenable number.

3994873 is a deficient number, since it is larger than the sum of its proper divisors (48215).

3994873 is an equidigital number, since it uses as much as digits as its factorization.

3994873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48214.

The product of its digits is 163296, while the sum is 43.

The square root of 3994873 is about 1998.7178390158. The cubic root of 3994873 is about 158.6722544894.

The spelling of 3994873 in words is "three million, nine hundred ninety-four thousand, eight hundred seventy-three".