16486849 has 2 divisors, whose sum is σ = 16486850. Its totient is φ = 16486848.

The previous prime is 16486843. The next prime is 16486861. The reversal of 16486849 is 94868461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16483600 + 3249 = 4060^2 + 57^2 .

It is an emirp because it is prime and its reverse (94868461) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16486849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16486799 and 16486808.

It is not a weakly prime, because it can be changed into another prime (16486843) 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, 8243424 + 8243425.

It is an arithmetic number, because the mean of its divisors is an integer number (8243425).

Almost surely, 2^16486849 is an apocalyptic number.

It is an amenable number.

16486849 is a deficient number, since it is larger than the sum of its proper divisors (1).

16486849 is an equidigital number, since it uses as much as digits as its factorization.

16486849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 46.

The square root of 16486849 is about 4060.4001034381. The cubic root of 16486849 is about 254.5145139379.

The spelling of 16486849 in words is "sixteen million, four hundred eighty-six thousand, eight hundred forty-nine".