16736989 has 2 divisors, whose sum is σ = 16736990. Its totient is φ = 16736988.

The previous prime is 16736977. The next prime is 16737001. The reversal of 16736989 is 98963761.

It is a balanced prime because it is at equal distance from previous prime (16736977) and next prime (16737001).

It can be written as a sum of positive squares in only one way, i.e., 15665764 + 1071225 = 3958^2 + 1035^2 .

It is a cyclic number.

It is not a de Polignac number, because 16736989 - 2¹¹ = 16734941 is a prime.

It is a super-2 number, since 2×16736989² = 560253601572242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16736969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8368494 + 8368495.

It is an arithmetic number, because the mean of its divisors is an integer number (8368495).

Almost surely, 2^16736989 is an apocalyptic number.

It is an amenable number.

16736989 is a deficient number, since it is larger than the sum of its proper divisors (1).

16736989 is an equidigital number, since it uses as much as digits as its factorization.

16736989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 49.

The square root of 16736989 is about 4091.0865304953. The cubic root of 16736989 is about 255.7952311510.

The spelling of 16736989 in words is "sixteen million, seven hundred thirty-six thousand, nine hundred eighty-nine".