16672847 has 4 divisors (see below), whose sum is σ = 16828776. Its totient is φ = 16516920.

The previous prime is 16672841. The next prime is 16672849. The reversal of 16672847 is 74827661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74827661 = 1151 ⋅65011.

It is a cyclic number.

It is not a de Polignac number, because 16672847 - 2¹⁴ = 16656463 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 (16672841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77804 + ... + 78017.

It is an arithmetic number, because the mean of its divisors is an integer number (4207194).

Almost surely, 2^16672847 is an apocalyptic number.

16672847 is a deficient number, since it is larger than the sum of its proper divisors (155929).

16672847 is a wasteful number, since it uses less digits than its factorization.

16672847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155928.

The product of its digits is 112896, while the sum is 41.

The square root of 16672847 is about 4083.2397676355. The cubic root of 16672847 is about 255.4680472141.

The spelling of 16672847 in words is "sixteen million, six hundred seventy-two thousand, eight hundred forty-seven".