17420653 has 2 divisors, whose sum is σ = 17420654. Its totient is φ = 17420652.

The previous prime is 17420617. The next prime is 17420681. The reversal of 17420653 is 35602471.

It is an a-pointer prime, because the next prime (17420681) can be obtained adding 17420653 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17413929 + 6724 = 4173^2 + 82^2 .

It is a cyclic number.

It is not a de Polignac number, because 17420653 - 2⁹ = 17420141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17420353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8710326 + 8710327.

It is an arithmetic number, because the mean of its divisors is an integer number (8710327).

Almost surely, 2^17420653 is an apocalyptic number.

It is an amenable number.

17420653 is a deficient number, since it is larger than the sum of its proper divisors (1).

17420653 is an equidigital number, since it uses as much as digits as its factorization.

17420653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 17420653 is about 4173.8055776473. The cubic root of 17420653 is about 259.2317211867.

The spelling of 17420653 in words is "seventeen million, four hundred twenty thousand, six hundred fifty-three".