426667117 has 2 divisors, whose sum is σ = 426667118. Its totient is φ = 426667116.

The previous prime is 426667079. The next prime is 426667121. The reversal of 426667117 is 711766624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231617961 + 195049156 = 15219^2 + 13966^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426667117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 426667117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426667177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213333558 + 213333559.

It is an arithmetic number, because the mean of its divisors is an integer number (213333559).

Almost surely, 2^426667117 is an apocalyptic number.

It is an amenable number.

426667117 is a deficient number, since it is larger than the sum of its proper divisors (1).

426667117 is an equidigital number, since it uses as much as digits as its factorization.

426667117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 40.

The square root of 426667117 is about 20655.9220806044. The cubic root of 426667117 is about 752.8290879672.

The spelling of 426667117 in words is "four hundred twenty-six million, six hundred sixty-seven thousand, one hundred seventeen".