8428114477 has 2 divisors, whose sum is σ = 8428114478. Its totient is φ = 8428114476.

The previous prime is 8428114469. The next prime is 8428114481. The reversal of 8428114477 is 7744118248.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8019023401 + 409091076 = 89549^2 + 20226^2 .

It is a cyclic number.

It is not a de Polignac number, because 8428114477 - 2³ = 8428114469 is a prime.

It is a super-2 number, since 2×8428114477² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8428115477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4214057238 + 4214057239.

It is an arithmetic number, because the mean of its divisors is an integer number (4214057239).

Almost surely, 2^8428114477 is an apocalyptic number.

It is an amenable number.

8428114477 is a deficient number, since it is larger than the sum of its proper divisors (1).

8428114477 is an equidigital number, since it uses as much as digits as its factorization.

8428114477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 401408, while the sum is 46.

The square root of 8428114477 is about 91804.7628230693. The cubic root of 8428114477 is about 2035.0580811559.

The spelling of 8428114477 in words is "eight billion, four hundred twenty-eight million, one hundred fourteen thousand, four hundred seventy-seven".