13642617 has 4 divisors (see below), whose sum is σ = 18190160. Its totient is φ = 9095076.

The previous prime is 13642613. The next prime is 13642631. The reversal of 13642617 is 71624631.

13642617 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 a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13642617 - 2² = 13642613 is a prime.

It is a super-2 number, since 2×13642617² = 372241997217378, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (13642613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2273767 + ... + 2273772.

It is an arithmetic number, because the mean of its divisors is an integer number (4547540).

Almost surely, 2^13642617 is an apocalyptic number.

It is an amenable number.

13642617 is a deficient number, since it is larger than the sum of its proper divisors (4547543).

13642617 is an equidigital number, since it uses as much as digits as its factorization.

13642617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4547542.

The product of its digits is 6048, while the sum is 30.

The square root of 13642617 is about 3693.5913417702. The cubic root of 13642617 is about 238.9457052368.

The spelling of 13642617 in words is "thirteen million, six hundred forty-two thousand, six hundred seventeen".