13427427 has 8 divisors (see below), whose sum is σ = 19280464. Its totient is φ = 8263008.

The previous prime is 13427413. The next prime is 13427443. The reversal of 13427427 is 72472431.

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

It is not a de Polignac number, because 13427427 - 2¹⁰ = 13426403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13427394 and 13427403.

It is not an unprimeable number, because it can be changed into a prime (13427527) 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, 172108 + ... + 172185.

It is an arithmetic number, because the mean of its divisors is an integer number (2410058).

Almost surely, 2^13427427 is an apocalyptic number.

13427427 is a deficient number, since it is larger than the sum of its proper divisors (5853037).

13427427 is a wasteful number, since it uses less digits than its factorization.

13427427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344309.

The product of its digits is 9408, while the sum is 30.

The square root of 13427427 is about 3664.3453712771. The cubic root of 13427427 is about 237.6827151672.

Adding to 13427427 its reverse (72472431), we get a palindrome (85899858).

The spelling of 13427427 in words is "thirteen million, four hundred twenty-seven thousand, four hundred twenty-seven".