13427817 has 16 divisors (see below), whose sum is σ = 19427520. Its totient is φ = 8200512.

The previous prime is 13427809. The next prime is 13427833. The reversal of 13427817 is 71872431.

It is a happy number.

13427817 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13427817 - 2³ = 13427809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13427017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4183 + ... + 6659.

It is an arithmetic number, because the mean of its divisors is an integer number (1214220).

Almost surely, 2^13427817 is an apocalyptic number.

It is an amenable number.

13427817 is a deficient number, since it is larger than the sum of its proper divisors (5999703).

13427817 is a wasteful number, since it uses less digits than its factorization.

13427817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632.

The product of its digits is 9408, while the sum is 33.

The square root of 13427817 is about 3664.3985863986. The cubic root of 13427817 is about 237.6850163120.

The spelling of 13427817 in words is "thirteen million, four hundred twenty-seven thousand, eight hundred seventeen".