17212493 has 2 divisors, whose sum is σ = 17212494. Its totient is φ = 17212492.

The previous prime is 17212463. The next prime is 17212519. The reversal of 17212493 is 39421271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17197609 + 14884 = 4147^2 + 122^2 .

It is a cyclic number.

It is not a de Polignac number, because 17212493 - 2¹⁶ = 17146957 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17212463) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8606246 + 8606247.

It is an arithmetic number, because the mean of its divisors is an integer number (8606247).

Almost surely, 2^17212493 is an apocalyptic number.

It is an amenable number.

17212493 is a deficient number, since it is larger than the sum of its proper divisors (1).

17212493 is an equidigital number, since it uses as much as digits as its factorization.

17212493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 29.

The square root of 17212493 is about 4148.7941621633. The cubic root of 17212493 is about 258.1950581079.

The spelling of 17212493 in words is "seventeen million, two hundred twelve thousand, four hundred ninety-three".