16930805 has 16 divisors (see below), whose sum is σ = 22080000. Its totient is φ = 12415680.

The previous prime is 16930801. The next prime is 16930807. The reversal of 16930805 is 50803961.

It is not a de Polignac number, because 16930805 - 2² = 16930801 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16930801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71 + ... + 5819.

It is an arithmetic number, because the mean of its divisors is an integer number (1380000).

Almost surely, 2^16930805 is an apocalyptic number.

It is an amenable number.

16930805 is a deficient number, since it is larger than the sum of its proper divisors (5149195).

16930805 is a wasteful number, since it uses less digits than its factorization.

16930805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5804.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 16930805 is about 4114.7059433209. The cubic root of 16930805 is about 256.7788222573.

The spelling of 16930805 in words is "sixteen million, nine hundred thirty thousand, eight hundred five".