13672305 has 24 divisors (see below), whose sum is σ = 24947520. Its totient is φ = 6907680.

The previous prime is 13672303. The next prime is 13672319. The reversal of 13672305 is 50327631.

It is a happy number.

It is not a de Polignac number, because 13672305 - 2¹ = 13672303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13672303) 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 23 ways as a sum of consecutive naturals, for example, 7141 + ... + 8850.

It is an arithmetic number, because the mean of its divisors is an integer number (1039480).

Almost surely, 2^13672305 is an apocalyptic number.

13672305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13672305 is a deficient number, since it is larger than the sum of its proper divisors (11275215).

13672305 is a wasteful number, since it uses less digits than its factorization.

13672305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16021 (or 16018 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 13672305 is about 3697.6080105928. The cubic root of 13672305 is about 239.1189046710.

Adding to 13672305 its reverse (50327631), we get a palindrome (63999936).

The spelling of 13672305 in words is "thirteen million, six hundred seventy-two thousand, three hundred five".