16890479 has 2 divisors, whose sum is σ = 16890480. Its totient is φ = 16890478.

The previous prime is 16890451. The next prime is 16890481. The reversal of 16890479 is 97409861.

It is a strong prime.

It is an emirp because it is prime and its reverse (97409861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16890479 - 2¹⁶ = 16824943 is a prime.

Together with 16890481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16890409) 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 as a sum of consecutive naturals, namely, 8445239 + 8445240.

It is an arithmetic number, because the mean of its divisors is an integer number (8445240).

Almost surely, 2^16890479 is an apocalyptic number.

16890479 is a deficient number, since it is larger than the sum of its proper divisors (1).

16890479 is an equidigital number, since it uses as much as digits as its factorization.

16890479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 16890479 is about 4109.8027933223. The cubic root of 16890479 is about 256.5747938645.

The spelling of 16890479 in words is "sixteen million, eight hundred ninety thousand, four hundred seventy-nine".