13504433 has 4 divisors (see below), whose sum is σ = 13635648. Its totient is φ = 13373220.

The previous prime is 13504429. The next prime is 13504471. The reversal of 13504433 is 33440531.

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: 33440531 = 193 ⋅173267.

It is a cyclic number.

It is not a de Polignac number, because 13504433 - 2² = 13504429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13504399 and 13504408.

It is not an unprimeable number, because it can be changed into a prime (13504423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65453 + ... + 65658.

It is an arithmetic number, because the mean of its divisors is an integer number (3408912).

Almost surely, 2^13504433 is an apocalyptic number.

It is an amenable number.

13504433 is a deficient number, since it is larger than the sum of its proper divisors (131215).

13504433 is a wasteful number, since it uses less digits than its factorization.

13504433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131214.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 13504433 is about 3674.8378195507. The cubic root of 13504433 is about 238.1362177166.

Adding to 13504433 its reverse (33440531), we get a palindrome (46944964).

The spelling of 13504433 in words is "thirteen million, five hundred four thousand, four hundred thirty-three".