13337421 has 8 divisors (see below), whose sum is σ = 18033984. Its totient is φ = 8766240.

The previous prime is 13337393. The next prime is 13337431. The reversal of 13337421 is 12473331.

13337421 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 13337421 - 2⁷ = 13337293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13337391 and 13337400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13337431) 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, 31096 + ... + 31521.

It is an arithmetic number, because the mean of its divisors is an integer number (2254248).

Almost surely, 2^13337421 is an apocalyptic number.

It is an amenable number.

13337421 is a deficient number, since it is larger than the sum of its proper divisors (4696563).

13337421 is an equidigital number, since it uses as much as digits as its factorization.

13337421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62691.

The product of its digits is 1512, while the sum is 24.

The square root of 13337421 is about 3652.0434006183. The cubic root of 13337421 is about 237.1504501471.

The spelling of 13337421 in words is "thirteen million, three hundred thirty-seven thousand, four hundred twenty-one".