16798949 has 2 divisors, whose sum is σ = 16798950. Its totient is φ = 16798948.

The previous prime is 16798927. The next prime is 16798961. The reversal of 16798949 is 94989761.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14010049 + 2788900 = 3743^2 + 1670^2 .

It is a cyclic number.

It is not a de Polignac number, because 16798949 - 2¹⁶ = 16733413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16798949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16798049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8399474 + 8399475.

It is an arithmetic number, because the mean of its divisors is an integer number (8399475).

Almost surely, 2^16798949 is an apocalyptic number.

It is an amenable number.

16798949 is a deficient number, since it is larger than the sum of its proper divisors (1).

16798949 is an equidigital number, since it uses as much as digits as its factorization.

16798949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 53.

The square root of 16798949 is about 4098.6520955065. The cubic root of 16798949 is about 256.1104920579.

The spelling of 16798949 in words is "sixteen million, seven hundred ninety-eight thousand, nine hundred forty-nine".