16908019 has 2 divisors, whose sum is σ = 16908020. Its totient is φ = 16908018.

The previous prime is 16907999. The next prime is 16908037. The reversal of 16908019 is 91080961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16908019 - 2¹¹ = 16905971 is a prime.

It is a super-2 number, since 2×16908019² = 571762213008722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16908049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8454009 + 8454010.

It is an arithmetic number, because the mean of its divisors is an integer number (8454010).

Almost surely, 2^16908019 is an apocalyptic number.

16908019 is a deficient number, since it is larger than the sum of its proper divisors (1).

16908019 is an equidigital number, since it uses as much as digits as its factorization.

16908019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 16908019 is about 4111.9361619558. The cubic root of 16908019 is about 256.6635769198.

The spelling of 16908019 in words is "sixteen million, nine hundred eight thousand, nineteen".