16953449 has 2 divisors, whose sum is σ = 16953450. Its totient is φ = 16953448.

The previous prime is 16953439. The next prime is 16953457. The reversal of 16953449 is 94435961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12201049 + 4752400 = 3493^2 + 2180^2 .

It is a cyclic number.

It is not a de Polignac number, because 16953449 - 2⁸ = 16953193 is a prime.

It is a super-3 number, since 3×16953449³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16953439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8476724 + 8476725.

It is an arithmetic number, because the mean of its divisors is an integer number (8476725).

Almost surely, 2^16953449 is an apocalyptic number.

It is an amenable number.

16953449 is a deficient number, since it is larger than the sum of its proper divisors (1).

16953449 is an equidigital number, since it uses as much as digits as its factorization.

16953449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 41.

The square root of 16953449 is about 4117.4566178650. The cubic root of 16953449 is about 256.8932470072.

The spelling of 16953449 in words is "sixteen million, nine hundred fifty-three thousand, four hundred forty-nine".