3998433 has 8 divisors (see below), whose sum is σ = 5515200. Its totient is φ = 2573648.

The previous prime is 3998419. The next prime is 3998459. The reversal of 3998433 is 3348993.

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

It is a cyclic number.

It is not a de Polignac number, because 3998433 - 2⁶ = 3998369 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3998391 and 3998400.

It is not an unprimeable number, because it can be changed into a prime (3998413) 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, 22893 + ... + 23066.

It is an arithmetic number, because the mean of its divisors is an integer number (689400).

Almost surely, 2^3998433 is an apocalyptic number.

It is an amenable number.

3998433 is a deficient number, since it is larger than the sum of its proper divisors (1516767).

3998433 is a wasteful number, since it uses less digits than its factorization.

3998433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45991.

The product of its digits is 69984, while the sum is 39.

The square root of 3998433 is about 1999.6082116255. The cubic root of 3998433 is about 158.7193736773.

The spelling of 3998433 in words is "three million, nine hundred ninety-eight thousand, four hundred thirty-three".