13998355 has 8 divisors (see below), whose sum is σ = 19197792. Its totient is φ = 9598848.

The previous prime is 13998353. The next prime is 13998427. The reversal of 13998355 is 55389931.

13998355 is digitally balanced in base 2 and base 3, because in such bases 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 13998355 - 2¹ = 13998353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13998353) 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, 199942 + ... + 200011.

It is an arithmetic number, because the mean of its divisors is an integer number (2399724).

Almost surely, 2^13998355 is an apocalyptic number.

13998355 is a deficient number, since it is larger than the sum of its proper divisors (5199437).

13998355 is an equidigital number, since it uses as much as digits as its factorization.

13998355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399965.

The product of its digits is 145800, while the sum is 43.

The square root of 13998355 is about 3741.4375579448. The cubic root of 13998355 is about 241.0047863239.

The spelling of 13998355 in words is "thirteen million, nine hundred ninety-eight thousand, three hundred fifty-five".