13910947 has 4 divisors (see below), whose sum is σ = 14729256. Its totient is φ = 13092640.

The previous prime is 13910921. The next prime is 13910951. The reversal of 13910947 is 74901931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74901931 = 13 ⋅5761687.

It is a cyclic number.

It is not a de Polignac number, because 13910947 - 2²³ = 5522339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13910917) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 409129 + ... + 409162.

It is an arithmetic number, because the mean of its divisors is an integer number (3682314).

Almost surely, 2^13910947 is an apocalyptic number.

13910947 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13910947 is a deficient number, since it is larger than the sum of its proper divisors (818309).

13910947 is an equidigital number, since it uses as much as digits as its factorization.

13910947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818308.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 13910947 is about 3729.7381945654. The cubic root of 13910947 is about 240.5021142819.

The spelling of 13910947 in words is "thirteen million, nine hundred ten thousand, nine hundred forty-seven".