16852949 has 2 divisors, whose sum is σ = 16852950. Its totient is φ = 16852948.

The previous prime is 16852939. The next prime is 16852987. The reversal of 16852949 is 94925861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12780625 + 4072324 = 3575^2 + 2018^2 .

It is an emirp because it is prime and its reverse (94925861) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16852949 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16852919) 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, 8426474 + 8426475.

It is an arithmetic number, because the mean of its divisors is an integer number (8426475).

Almost surely, 2^16852949 is an apocalyptic number.

It is an amenable number.

16852949 is a deficient number, since it is larger than the sum of its proper divisors (1).

16852949 is an equidigital number, since it uses as much as digits as its factorization.

16852949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 44.

The square root of 16852949 is about 4105.2343416667. The cubic root of 16852949 is about 256.3846198070.

The spelling of 16852949 in words is "sixteen million, eight hundred fifty-two thousand, nine hundred forty-nine".