13933947 has 8 divisors (see below), whose sum is σ = 18645840. Its totient is φ = 9255680.

The previous prime is 13933937. The next prime is 13933961. The reversal of 13933947 is 74933931.

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

It is a cyclic number.

It is not a de Polignac number, because 13933947 - 2⁷ = 13933819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13933937) 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, 7422 + ... + 9107.

It is an arithmetic number, because the mean of its divisors is an integer number (2330730).

Almost surely, 2^13933947 is an apocalyptic number.

13933947 is a deficient number, since it is larger than the sum of its proper divisors (4711893).

13933947 is a wasteful number, since it uses less digits than its factorization.

13933947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16813.

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

The square root of 13933947 is about 3732.8202474804. The cubic root of 13933947 is about 240.6345879578.

The spelling of 13933947 in words is "thirteen million, nine hundred thirty-three thousand, nine hundred forty-seven".