13891683 has 8 divisors (see below), whose sum is σ = 19947088. Its totient is φ = 8548704.

The previous prime is 13891651. The next prime is 13891697. The reversal of 13891683 is 38619831.

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

It is not a de Polignac number, because 13891683 - 2⁵ = 13891651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 356197 = 13891683 / (1 + 3 + 8 + 9 + 1 + 6 + 8 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13891643) 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, 178060 + ... + 178137.

It is an arithmetic number, because the mean of its divisors is an integer number (2493386).

Almost surely, 2^13891683 is an apocalyptic number.

13891683 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13891683 is a deficient number, since it is larger than the sum of its proper divisors (6055405).

13891683 is a wasteful number, since it uses less digits than its factorization.

13891683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356213.

The product of its digits is 31104, while the sum is 39.

The square root of 13891683 is about 3727.1548129907. The cubic root of 13891683 is about 240.3910465260.

The spelling of 13891683 in words is "thirteen million, eight hundred ninety-one thousand, six hundred eighty-three".