13421369 has 8 divisors (see below), whose sum is σ = 14486472. Its totient is φ = 12360960.

The previous prime is 13421363. The next prime is 13421393. The reversal of 13421369 is 96312431.

It can be written as a sum of positive squares in 4 ways, for example, as 193600 + 13227769 = 440^2 + 3637^2 .

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 13421369 - 2²⁰ = 12372793 is a prime.

It is a super-4 number, since 4×13421369⁴ (a number of 30 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (13421363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6839 + ... + 8579.

It is an arithmetic number, because the mean of its divisors is an integer number (1810809).

Almost surely, 2^13421369 is an apocalyptic number.

It is an amenable number.

13421369 is a deficient number, since it is larger than the sum of its proper divisors (1065103).

13421369 is a wasteful number, since it uses less digits than its factorization.

13421369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347.

The product of its digits is 3888, while the sum is 29.

The square root of 13421369 is about 3663.5186637985. The cubic root of 13421369 is about 237.6469649950.

The spelling of 13421369 in words is "thirteen million, four hundred twenty-one thousand, three hundred sixty-nine".