434278477 has 2 divisors, whose sum is σ = 434278478. Its totient is φ = 434278476.

The previous prime is 434278469. The next prime is 434278483. The reversal of 434278477 is 774872434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320087881 + 114190596 = 17891^2 + 10686^2 .

It is a cyclic number.

It is not a de Polignac number, because 434278477 - 2³ = 434278469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434278777) 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 as a sum of consecutive naturals, namely, 217139238 + 217139239.

It is an arithmetic number, because the mean of its divisors is an integer number (217139239).

Almost surely, 2^434278477 is an apocalyptic number.

It is an amenable number.

434278477 is a deficient number, since it is larger than the sum of its proper divisors (1).

434278477 is an equidigital number, since it uses as much as digits as its factorization.

434278477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1053696, while the sum is 46.

The square root of 434278477 is about 20839.3492460777. The cubic root of 434278477 is about 757.2793285186.

The spelling of 434278477 in words is "four hundred thirty-four million, two hundred seventy-eight thousand, four hundred seventy-seven".