3893998 has 4 divisors (see below), whose sum is σ = 5841000. Its totient is φ = 1946998.

The previous prime is 3893983. The next prime is 3894001. The reversal of 3893998 is 8993983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8993983 = 2281 ⋅3943.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 973498 + ... + 973501.

It is an arithmetic number, because the mean of its divisors is an integer number (1460250).

Almost surely, 2^3893998 is an apocalyptic number.

3893998 is a deficient number, since it is larger than the sum of its proper divisors (1947002).

3893998 is a wasteful number, since it uses less digits than its factorization.

3893998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947001.

The product of its digits is 419904, while the sum is 49.

The square root of 3893998 is about 1973.3215652802. The cubic root of 3893998 is about 157.3253022250.

The spelling of 3893998 in words is "three million, eight hundred ninety-three thousand, nine hundred ninety-eight".