13977343 has 4 divisors (see below), whose sum is σ = 13985248. Its totient is φ = 13969440.

The previous prime is 13977329. The next prime is 13977371. The reversal of 13977343 is 34377931.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13977343 is a prime.

It is a super-2 number, since 2×13977343² = 390732234679298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13977323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55 + ... + 5287.

It is an arithmetic number, because the mean of its divisors is an integer number (3496312).

Almost surely, 2^13977343 is an apocalyptic number.

13977343 is a deficient number, since it is larger than the sum of its proper divisors (7905).

13977343 is an equidigital number, since it uses as much as digits as its factorization.

13977343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7904.

The product of its digits is 47628, while the sum is 37.

The square root of 13977343 is about 3738.6284918403. The cubic root of 13977343 is about 240.8841405188.

The spelling of 13977343 in words is "thirteen million, nine hundred seventy-seven thousand, three hundred forty-three".