13339947 has 8 divisors (see below), whose sum is σ = 18030544. Its totient is φ = 8771328.

The previous prime is 13339927. The next prime is 13339961. The reversal of 13339947 is 74993331.

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

It is not a de Polignac number, because 13339947 - 2¹⁶ = 13274411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13339927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30238 + ... + 30675.

It is an arithmetic number, because the mean of its divisors is an integer number (2253818).

Almost surely, 2^13339947 is an apocalyptic number.

13339947 is a deficient number, since it is larger than the sum of its proper divisors (4690597).

13339947 is an equidigital number, since it uses as much as digits as its factorization.

13339947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60989.

The product of its digits is 61236, while the sum is 39.

The square root of 13339947 is about 3652.3892180325. The cubic root of 13339947 is about 237.1654206631.

The spelling of 13339947 in words is "thirteen million, three hundred thirty-nine thousand, nine hundred forty-seven".