16693249 has 2 divisors, whose sum is σ = 16693250. Its totient is φ = 16693248.

The previous prime is 16693231. The next prime is 16693277. The reversal of 16693249 is 94239661.

16693249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8673025 + 8020224 = 2945^2 + 2832^2 .

It is an emirp because it is prime and its reverse (94239661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16693249 - 2⁵ = 16693217 is a prime.

It is not a weakly prime, because it can be changed into another prime (16693219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8346624 + 8346625.

It is an arithmetic number, because the mean of its divisors is an integer number (8346625).

Almost surely, 2^16693249 is an apocalyptic number.

It is an amenable number.

16693249 is a deficient number, since it is larger than the sum of its proper divisors (1).

16693249 is an equidigital number, since it uses as much as digits as its factorization.

16693249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 40.

The square root of 16693249 is about 4085.7372651701. The cubic root of 16693249 is about 255.5722072816.

The spelling of 16693249 in words is "sixteen million, six hundred ninety-three thousand, two hundred forty-nine".