16930009 has 4 divisors (see below), whose sum is σ = 17000500. Its totient is φ = 16859520.

The previous prime is 16929971. The next prime is 16930027. The reversal of 16930009 is 90003961.

It is a happy number.

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 5774409 + 11155600 = 2403^2 + 3340^2 .

It is a cyclic number.

It is not a de Polignac number, because 16930009 - 2¹¹ = 16927961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16930709) 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, 34884 + ... + 35365.

It is an arithmetic number, because the mean of its divisors is an integer number (4250125).

Almost surely, 2^16930009 is an apocalyptic number.

It is an amenable number.

16930009 is a deficient number, since it is larger than the sum of its proper divisors (70491).

16930009 is an equidigital number, since it uses as much as digits as its factorization.

16930009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70490.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 16930009 is about 4114.6092159523. The cubic root of 16930009 is about 256.7747980512.

The spelling of 16930009 in words is "sixteen million, nine hundred thirty thousand, nine".