13672361 has 4 divisors (see below), whose sum is σ = 13680132. Its totient is φ = 13664592.

The previous prime is 13672349. The next prime is 13672367. The reversal of 13672361 is 16327631.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 10272025 + 3400336 = 3205^2 + 1844^2 .

It is a cyclic number.

It is not a de Polignac number, because 13672361 - 2⁶ = 13672297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13672367) 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 3 ways as a sum of consecutive naturals, for example, 155 + ... + 5231.

It is an arithmetic number, because the mean of its divisors is an integer number (3420033).

Almost surely, 2^13672361 is an apocalyptic number.

It is an amenable number.

13672361 is a deficient number, since it is larger than the sum of its proper divisors (7771).

13672361 is an equidigital number, since it uses as much as digits as its factorization.

13672361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7770.

The product of its digits is 4536, while the sum is 29.

The square root of 13672361 is about 3697.6155830481. The cubic root of 13672361 is about 239.1192311373.

Adding to 13672361 its reverse (16327631), we get a palindrome (29999992).

The spelling of 13672361 in words is "thirteen million, six hundred seventy-two thousand, three hundred sixty-one".