13788671 has 8 divisors (see below), whose sum is σ = 14908320. Its totient is φ = 12677472.

The previous prime is 13788653. The next prime is 13788673. The reversal of 13788671 is 17688731.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13788671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13788673) 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, 1526 + ... + 5468.

It is an arithmetic number, because the mean of its divisors is an integer number (1863540).

Almost surely, 2^13788671 is an apocalyptic number.

13788671 is a deficient number, since it is larger than the sum of its proper divisors (1119649).

13788671 is a wasteful number, since it uses less digits than its factorization.

13788671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4225.

The product of its digits is 56448, while the sum is 41.

The square root of 13788671 is about 3713.3099789810. The cubic root of 13788671 is about 239.7953753546.

The spelling of 13788671 in words is "thirteen million, seven hundred eighty-eight thousand, six hundred seventy-one".