13608771 has 8 divisors (see below), whose sum is σ = 19794624. Its totient is φ = 8247720.

The previous prime is 13608739. The next prime is 13608779. The reversal of 13608771 is 17780631.

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

It is not a de Polignac number, because 13608771 - 2⁵ = 13608739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 412387 = 13608771 / (1 + 3 + 6 + 0 + 8 + 7 + 7 + 1).

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (13608779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206161 + ... + 206226.

It is an arithmetic number, because the mean of its divisors is an integer number (2474328).

Almost surely, 2^13608771 is an apocalyptic number.

13608771 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13608771 is a deficient number, since it is larger than the sum of its proper divisors (6185853).

13608771 is a wasteful number, since it uses less digits than its factorization.

13608771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412401.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 13608771 is about 3689.0067768981. The cubic root of 13608771 is about 238.7479412850.

The spelling of 13608771 in words is "thirteen million, six hundred eight thousand, seven hundred seventy-one".