8138433 has 4 divisors (see below), whose sum is σ = 10851248. Its totient is φ = 5425620.

The previous prime is 8138413. The next prime is 8138443. The reversal of 8138433 is 3348318.

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.

It is not a de Polignac number, because 8138433 - 2²⁰ = 7089857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8138433.

It is not an unprimeable number, because it can be changed into a prime (8138413) 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, 1356403 + ... + 1356408.

It is an arithmetic number, because the mean of its divisors is an integer number (2712812).

Almost surely, 2^8138433 is an apocalyptic number.

It is an amenable number.

8138433 is a deficient number, since it is larger than the sum of its proper divisors (2712815).

8138433 is a wasteful number, since it uses less digits than its factorization.

8138433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712814.

The product of its digits is 6912, while the sum is 30.

The square root of 8138433 is about 2852.7938937119. The cubic root of 8138433 is about 201.1470175119.

The spelling of 8138433 in words is "eight million, one hundred thirty-eight thousand, four hundred thirty-three".