16830073 has 4 divisors (see below), whose sum is σ = 18124708. Its totient is φ = 15535440.

The previous prime is 16830061. The next prime is 16830091. The reversal of 16830073 is 37003861.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 725904 + 16104169 = 852^2 + 4013^2 .

It is a cyclic number.

It is not a de Polignac number, because 16830073 - 2⁵ = 16830041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16830173) 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, 647298 + ... + 647323.

It is an arithmetic number, because the mean of its divisors is an integer number (4531177).

Almost surely, 2^16830073 is an apocalyptic number.

16830073 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16830073 is a deficient number, since it is larger than the sum of its proper divisors (1294635).

16830073 is a wasteful number, since it uses less digits than its factorization.

16830073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294634.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 16830073 is about 4102.4471964914. The cubic root of 16830073 is about 256.2685627639.

The spelling of 16830073 in words is "sixteen million, eight hundred thirty thousand, seventy-three".