10421717 has 4 divisors (see below), whose sum is σ = 10457580. Its totient is φ = 10385856.

The previous prime is 10421713. The next prime is 10421779. The reversal of 10421717 is 71712401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71712401 = 37 ⋅1938173.

It can be written as a sum of positive squares in 2 ways, for example, as 10023556 + 398161 = 3166^2 + 631^2 .

It is a cyclic number.

It is not a de Polignac number, because 10421717 - 2² = 10421713 is a prime.

It is a super-2 number, since 2×10421717² = 217224370456178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10421692 and 10421701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10421711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17492 + ... + 18077.

It is an arithmetic number, because the mean of its divisors is an integer number (2614395).

Almost surely, 2^10421717 is an apocalyptic number.

It is an amenable number.

10421717 is a deficient number, since it is larger than the sum of its proper divisors (35863).

10421717 is an equidigital number, since it uses as much as digits as its factorization.

10421717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35862.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 10421717 is about 3228.2684213058. The cubic root of 10421717 is about 218.4304054619.

The spelling of 10421717 in words is "ten million, four hundred twenty-one thousand, seven hundred seventeen".