428606117 has 2 divisors, whose sum is σ = 428606118. Its totient is φ = 428606116.

The previous prime is 428606041. The next prime is 428606153. The reversal of 428606117 is 711606824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 369639076 + 58967041 = 19226^2 + 7679^2 .

It is a cyclic number.

It is not a de Polignac number, because 428606117 - 2²⁰ = 427557541 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428606317) 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, 214303058 + 214303059.

It is an arithmetic number, because the mean of its divisors is an integer number (214303059).

Almost surely, 2^428606117 is an apocalyptic number.

It is an amenable number.

428606117 is a deficient number, since it is larger than the sum of its proper divisors (1).

428606117 is an equidigital number, since it uses as much as digits as its factorization.

428606117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 428606117 is about 20702.8045684637. The cubic root of 428606117 is about 753.9677819986.

The spelling of 428606117 in words is "four hundred twenty-eight million, six hundred six thousand, one hundred seventeen".