16854457 has 4 divisors (see below), whose sum is σ = 16863616. Its totient is φ = 16845300.

The previous prime is 16854451. The next prime is 16854473. The reversal of 16854457 is 75445861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 16854457 - 2³ = 16854449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16854451) 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 in 3 ways as a sum of consecutive naturals, for example, 753 + ... + 5854.

It is an arithmetic number, because the mean of its divisors is an integer number (4215904).

Almost surely, 2^16854457 is an apocalyptic number.

It is an amenable number.

16854457 is a deficient number, since it is larger than the sum of its proper divisors (9159).

16854457 is an equidigital number, since it uses as much as digits as its factorization.

16854457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9158.

The product of its digits is 134400, while the sum is 40.

The square root of 16854457 is about 4105.4180055142. The cubic root of 16854457 is about 256.3922666680.

The spelling of 16854457 in words is "sixteen million, eight hundred fifty-four thousand, four hundred fifty-seven".