13408399 has 8 divisors (see below), whose sum is σ = 14077440. Its totient is φ = 12754200.

The previous prime is 13408397. The next prime is 13408463. The reversal of 13408399 is 99380431.

13408399 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 a cyclic number.

It is not a de Polignac number, because 13408399 - 2¹ = 13408397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13408397) 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, 1837 + ... + 5494.

It is an arithmetic number, because the mean of its divisors is an integer number (1759680).

Almost surely, 2^13408399 is an apocalyptic number.

13408399 is a deficient number, since it is larger than the sum of its proper divisors (669041).

13408399 is an equidigital number, since it uses as much as digits as its factorization.

13408399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7421.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 13408399 is about 3661.7480798111. The cubic root of 13408399 is about 237.5703887395.

The spelling of 13408399 in words is "thirteen million, four hundred eight thousand, three hundred ninety-nine".