13727445 has 16 divisors (see below), whose sum is σ = 22009920. Its totient is φ = 7305984.

The previous prime is 13727437. The next prime is 13727447. The reversal of 13727445 is 54472731.

It is not a de Polignac number, because 13727445 - 2³ = 13727437 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13727447) 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, 13101 + ... + 14109.

It is an arithmetic number, because the mean of its divisors is an integer number (1375620).

Almost surely, 2^13727445 is an apocalyptic number.

13727445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13727445 is a deficient number, since it is larger than the sum of its proper divisors (8282475).

13727445 is a wasteful number, since it uses less digits than its factorization.

13727445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924.

The product of its digits is 23520, while the sum is 33.

The square root of 13727445 is about 3705.0566797284. The cubic root of 13727445 is about 239.4399266466.

The spelling of 13727445 in words is "thirteen million, seven hundred twenty-seven thousand, four hundred forty-five".