16854491 has 2 divisors, whose sum is σ = 16854492. Its totient is φ = 16854490.

The previous prime is 16854479. The next prime is 16854493. The reversal of 16854491 is 19445861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16854491 - 2¹⁰ = 16853467 is a prime.

Together with 16854493, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16854493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8427245 + 8427246.

It is an arithmetic number, because the mean of its divisors is an integer number (8427246).

Almost surely, 2^16854491 is an apocalyptic number.

16854491 is a deficient number, since it is larger than the sum of its proper divisors (1).

16854491 is an equidigital number, since it uses as much as digits as its factorization.

16854491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 38.

The square root of 16854491 is about 4105.4221463815. The cubic root of 16854491 is about 256.3924390721.

The spelling of 16854491 in words is "sixteen million, eight hundred fifty-four thousand, four hundred ninety-one".