13685377 has 4 divisors (see below), whose sum is σ = 14405680. Its totient is φ = 12965076.

The previous prime is 13685369. The next prime is 13685381. The reversal of 13685377 is 77358631.

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 a cyclic number.

It is not a de Polignac number, because 13685377 - 2³ = 13685369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13685327) 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, 360123 + ... + 360160.

It is an arithmetic number, because the mean of its divisors is an integer number (3601420).

Almost surely, 2^13685377 is an apocalyptic number.

It is an amenable number.

13685377 is a deficient number, since it is larger than the sum of its proper divisors (720303).

13685377 is an equidigital number, since it uses as much as digits as its factorization.

13685377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720302.

The product of its digits is 105840, while the sum is 40.

The square root of 13685377 is about 3699.3752175198. The cubic root of 13685377 is about 239.1950870625.

It can be divided in two parts, 1368537 and 7, that multiplied together give a palindrome (9579759).

The spelling of 13685377 in words is "thirteen million, six hundred eighty-five thousand, three hundred seventy-seven".