17420617 has 2 divisors, whose sum is σ = 17420618. Its totient is φ = 17420616.

The previous prime is 17420609. The next prime is 17420653. The reversal of 17420617 is 71602471.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14584761 + 2835856 = 3819^2 + 1684^2 .

It is a cyclic number.

It is not a de Polignac number, because 17420617 - 2³ = 17420609 is a prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (17420687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8710308 + 8710309.

It is an arithmetic number, because the mean of its divisors is an integer number (8710309).

Almost surely, 2^17420617 is an apocalyptic number.

It is an amenable number.

17420617 is a deficient number, since it is larger than the sum of its proper divisors (1).

17420617 is an equidigital number, since it uses as much as digits as its factorization.

17420617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 17420617 is about 4173.8012650341. The cubic root of 17420617 is about 259.2315426180.

The spelling of 17420617 in words is "seventeen million, four hundred twenty thousand, six hundred seventeen".