16416857 has 2 divisors, whose sum is σ = 16416858. Its totient is φ = 16416856.

The previous prime is 16416797. The next prime is 16416859. The reversal of 16416857 is 75861461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10010896 + 6405961 = 3164^2 + 2531^2 .

It is a cyclic number.

It is not a de Polignac number, because 16416857 - 2¹⁴ = 16400473 is a prime.

Together with 16416859, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16416857.

It is not a weakly prime, because it can be changed into another prime (16416859) 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, 8208428 + 8208429.

It is an arithmetic number, because the mean of its divisors is an integer number (8208429).

Almost surely, 2^16416857 is an apocalyptic number.

It is an amenable number.

16416857 is a deficient number, since it is larger than the sum of its proper divisors (1).

16416857 is an equidigital number, since it uses as much as digits as its factorization.

16416857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 38.

The square root of 16416857 is about 4051.7720814478. The cubic root of 16416857 is about 254.1538376158.

The spelling of 16416857 in words is "sixteen million, four hundred sixteen thousand, eight hundred fifty-seven".