17996893 has 2 divisors, whose sum is σ = 17996894. Its totient is φ = 17996892.

The previous prime is 17996873. The next prime is 17996929. The reversal of 17996893 is 39869971.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16990884 + 1006009 = 4122^2 + 1003^2 .

It is a cyclic number.

It is not a de Polignac number, because 17996893 - 2⁵ = 17996861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17996893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17996813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8998446 + 8998447.

It is an arithmetic number, because the mean of its divisors is an integer number (8998447).

Almost surely, 2^17996893 is an apocalyptic number.

It is an amenable number.

17996893 is a deficient number, since it is larger than the sum of its proper divisors (1).

17996893 is an equidigital number, since it uses as much as digits as its factorization.

17996893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 52.

The square root of 17996893 is about 4242.2745078554. The cubic root of 17996893 is about 262.0590595837.

The spelling of 17996893 in words is "seventeen million, nine hundred ninety-six thousand, eight hundred ninety-three".