13777671 has 8 divisors (see below), whose sum is σ = 18962944. Its totient is φ = 8888760.

The previous prime is 13777669. The next prime is 13777723. The reversal of 13777671 is 17677731.

13777671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13777671 - 2¹ = 13777669 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 (13777601) 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, 73981 + ... + 74166.

It is an arithmetic number, because the mean of its divisors is an integer number (2370368).

Almost surely, 2^13777671 is an apocalyptic number.

13777671 is a deficient number, since it is larger than the sum of its proper divisors (5185273).

13777671 is a wasteful number, since it uses less digits than its factorization.

13777671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148181.

The product of its digits is 43218, while the sum is 39.

The square root of 13777671 is about 3711.8285251342. The cubic root of 13777671 is about 239.7315922951.

The spelling of 13777671 in words is "thirteen million, seven hundred seventy-seven thousand, six hundred seventy-one".