13472421 has 8 divisors (see below), whose sum is σ = 18007584. Its totient is φ = 8959440.

The previous prime is 13472419. The next prime is 13472429. The reversal of 13472421 is 12427431.

It is a happy number.

13472421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13472421 - 2¹ = 13472419 is a prime.

It is a super-2 number, since 2×13472421² = 363012255202482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13472391 and 13472400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13472429) 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, 4071 + ... + 6596.

It is an arithmetic number, because the mean of its divisors is an integer number (2250948).

Almost surely, 2^13472421 is an apocalyptic number.

It is an amenable number.

13472421 is a deficient number, since it is larger than the sum of its proper divisors (4535163).

13472421 is a wasteful number, since it uses less digits than its factorization.

13472421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11091.

The product of its digits is 1344, while the sum is 24.

The square root of 13472421 is about 3670.4796689261. The cubic root of 13472421 is about 237.9479030570.

Adding to 13472421 its reverse (12427431), we get a palindrome (25899852).

The spelling of 13472421 in words is "thirteen million, four hundred seventy-two thousand, four hundred twenty-one".