434993857 has 2 divisors, whose sum is σ = 434993858. Its totient is φ = 434993856.

The previous prime is 434993851. The next prime is 434993863. The reversal of 434993857 is 758399434.

It is a balanced prime because it is at equal distance from previous prime (434993851) and next prime (434993863).

It can be written as a sum of positive squares in only one way, i.e., 432806416 + 2187441 = 20804^2 + 1479^2 .

It is a cyclic number.

It is not a de Polignac number, because 434993857 - 2³ = 434993849 is a prime.

It is not a weakly prime, because it can be changed into another prime (434993851) 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, 217496928 + 217496929.

It is an arithmetic number, because the mean of its divisors is an integer number (217496929).

Almost surely, 2^434993857 is an apocalyptic number.

It is an amenable number.

434993857 is a deficient number, since it is larger than the sum of its proper divisors (1).

434993857 is an equidigital number, since it uses as much as digits as its factorization.

434993857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 52.

The square root of 434993857 is about 20856.5063469412. The cubic root of 434993857 is about 757.6949184520.

The spelling of 434993857 in words is "four hundred thirty-four million, nine hundred ninety-three thousand, eight hundred fifty-seven".