17212957 has 2 divisors, whose sum is σ = 17212958. Its totient is φ = 17212956.

The previous prime is 17212933. The next prime is 17212961. The reversal of 17212957 is 75921271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8797156 + 8415801 = 2966^2 + 2901^2 .

It is a cyclic number.

It is not a de Polignac number, because 17212957 - 2⁷ = 17212829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17212057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8606478 + 8606479.

It is an arithmetic number, because the mean of its divisors is an integer number (8606479).

Almost surely, 2^17212957 is an apocalyptic number.

It is an amenable number.

17212957 is a deficient number, since it is larger than the sum of its proper divisors (1).

17212957 is an equidigital number, since it uses as much as digits as its factorization.

17212957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8820, while the sum is 34.

The square root of 17212957 is about 4148.8500816491. The cubic root of 17212957 is about 258.1973781559.

The spelling of 17212957 in words is "seventeen million, two hundred twelve thousand, nine hundred fifty-seven".