16904873 has 2 divisors, whose sum is σ = 16904874. Its totient is φ = 16904872.

The previous prime is 16904863. The next prime is 16904879. The reversal of 16904873 is 37840961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9048064 + 7856809 = 3008^2 + 2803^2 .

It is a cyclic number.

It is not a de Polignac number, because 16904873 - 2⁶ = 16904809 is a prime.

It is a super-2 number, since 2×16904873² = 571549462292258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16904879) 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 as a sum of consecutive naturals, namely, 8452436 + 8452437.

It is an arithmetic number, because the mean of its divisors is an integer number (8452437).

Almost surely, 2^16904873 is an apocalyptic number.

It is an amenable number.

16904873 is a deficient number, since it is larger than the sum of its proper divisors (1).

16904873 is an equidigital number, since it uses as much as digits as its factorization.

16904873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 16904873 is about 4111.5535993101. The cubic root of 16904873 is about 256.6476571817.

The spelling of 16904873 in words is "sixteen million, nine hundred four thousand, eight hundred seventy-three".