17494949 has 2 divisors, whose sum is σ = 17494950. Its totient is φ = 17494948.

The previous prime is 17494933. The next prime is 17494963. The reversal of 17494949 is 94949471.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15484225 + 2010724 = 3935^2 + 1418^2 .

It is a cyclic number.

It is not a de Polignac number, because 17494949 - 2⁴ = 17494933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17494909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8747474 + 8747475.

It is an arithmetic number, because the mean of its divisors is an integer number (8747475).

Almost surely, 2^17494949 is an apocalyptic number.

It is an amenable number.

17494949 is a deficient number, since it is larger than the sum of its proper divisors (1).

17494949 is an equidigital number, since it uses as much as digits as its factorization.

17494949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 47.

The square root of 17494949 is about 4182.6963791315. The cubic root of 17494949 is about 259.5997243198.

The spelling of 17494949 in words is "seventeen million, four hundred ninety-four thousand, nine hundred forty-nine".