13911000 has 64 divisors (see below), whose sum is σ = 43411680. Its totient is φ = 3708800.

The previous prime is 13910993. The next prime is 13911011. The reversal of 13911000 is 11931.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 682 + ... + 5318.

Almost surely, 2^13911000 is an apocalyptic number.

13911000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13911000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21705840).

13911000 is an abundant number, since it is smaller than the sum of its proper divisors (29500680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13911000 is a wasteful number, since it uses less digits than its factorization.

13911000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4661 (or 4647 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 15.

The square root of 13911000 is about 3729.7452996150. The cubic root of 13911000 is about 240.5024197151.

Adding to 13911000 its reverse (11931), we get a palindrome (13922931).

The spelling of 13911000 in words is "thirteen million, nine hundred eleven thousand".