13889607 has 8 divisors (see below), whose sum is σ = 18727920. Its totient is φ = 9155520.

The previous prime is 13889599. The next prime is 13889641. The reversal of 13889607 is 70698831.

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

It is not a de Polignac number, because 13889607 - 2³ = 13889599 is a prime.

It is a super-2 number, since 2×13889607² = 385842365228898, which contains 22 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13889647) 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, 25744 + ... + 26277.

It is an arithmetic number, because the mean of its divisors is an integer number (2340990).

Almost surely, 2^13889607 is an apocalyptic number.

13889607 is a deficient number, since it is larger than the sum of its proper divisors (4838313).

13889607 is an equidigital number, since it uses as much as digits as its factorization.

13889607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52113.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 13889607 is about 3726.8763059699. The cubic root of 13889607 is about 240.3790710949.

The spelling of 13889607 in words is "thirteen million, eight hundred eighty-nine thousand, six hundred seven".