16947393 has 8 divisors (see below), whose sum is σ = 22664928. Its totient is φ = 11264064.

The previous prime is 16947377. The next prime is 16947431. The reversal of 16947393 is 39374961.

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

It is not a de Polignac number, because 16947393 - 2⁴ = 16947377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16947893) 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, 7371 + ... + 9392.

It is an arithmetic number, because the mean of its divisors is an integer number (2833116).

Almost surely, 2^16947393 is an apocalyptic number.

It is an amenable number.

16947393 is a deficient number, since it is larger than the sum of its proper divisors (5717535).

16947393 is a wasteful number, since it uses less digits than its factorization.

16947393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17103.

The product of its digits is 122472, while the sum is 42.

The square root of 16947393 is about 4116.7211467380. The cubic root of 16947393 is about 256.8626547900.

The spelling of 16947393 in words is "sixteen million, nine hundred forty-seven thousand, three hundred ninety-three".