13433421 has 8 divisors (see below), whose sum is σ = 17962560. Its totient is φ = 8929952.

The previous prime is 13433419. The next prime is 13433429. The reversal of 13433421 is 12433431.

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 13433421 - 2¹ = 13433419 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13433429) 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, 5160 + ... + 7313.

It is an arithmetic number, because the mean of its divisors is an integer number (2245320).

Almost surely, 2^13433421 is an apocalyptic number.

It is an amenable number.

13433421 is a deficient number, since it is larger than the sum of its proper divisors (4529139).

13433421 is a wasteful number, since it uses less digits than its factorization.

13433421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12835.

The product of its digits is 864, while the sum is 21.

The square root of 13433421 is about 3665.1631614432. The cubic root of 13433421 is about 237.7180770738.

Adding to 13433421 its reverse (12433431), we get a palindrome (25866852).

The spelling of 13433421 in words is "thirteen million, four hundred thirty-three thousand, four hundred twenty-one".