13985777 has 8 divisors (see below), whose sum is σ = 15091776. Its totient is φ = 12884112.

The previous prime is 13985761. The next prime is 13985813. The reversal of 13985777 is 77758931.

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

It is a cyclic number.

It is not a de Polignac number, because 13985777 - 2⁴ = 13985761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13985737) 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, 9548 + ... + 10914.

It is an arithmetic number, because the mean of its divisors is an integer number (1886472).

Almost surely, 2^13985777 is an apocalyptic number.

It is an amenable number.

13985777 is a deficient number, since it is larger than the sum of its proper divisors (1105999).

13985777 is a wasteful number, since it uses less digits than its factorization.

13985777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167.

The product of its digits is 370440, while the sum is 47.

The square root of 13985777 is about 3739.7562754811. The cubic root of 13985777 is about 240.9325810164.

The spelling of 13985777 in words is "thirteen million, nine hundred eighty-five thousand, seven hundred seventy-seven".