16930247 has 4 divisors (see below), whose sum is σ = 17476416. Its totient is φ = 16384080.

The previous prime is 16930237. The next prime is 16930259. The reversal of 16930247 is 74203961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74203961 = 13 ⋅5707997.

It is a cyclic number.

It is not a de Polignac number, because 16930247 - 2¹⁰ = 16929223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16930217) 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, 273038 + ... + 273099.

It is an arithmetic number, because the mean of its divisors is an integer number (4369104).

Almost surely, 2^16930247 is an apocalyptic number.

16930247 is a deficient number, since it is larger than the sum of its proper divisors (546169).

16930247 is an equidigital number, since it uses as much as digits as its factorization.

16930247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546168.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 16930247 is about 4114.6381371878. The cubic root of 16930247 is about 256.7760012818.

The spelling of 16930247 in words is "sixteen million, nine hundred thirty thousand, two hundred forty-seven".