34287857 has 2 divisors, whose sum is σ = 34287858. Its totient is φ = 34287856.

The previous prime is 34287839. The next prime is 34287859. The reversal of 34287857 is 75878243.

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., 34000561 + 287296 = 5831^2 + 536^2 .

It is a cyclic number.

It is not a de Polignac number, because 34287857 - 2²⁴ = 17510641 is a prime.

Together with 34287859, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (34287859) 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, 17143928 + 17143929.

It is an arithmetic number, because the mean of its divisors is an integer number (17143929).

Almost surely, 2^34287857 is an apocalyptic number.

It is an amenable number.

34287857 is a deficient number, since it is larger than the sum of its proper divisors (1).

34287857 is an equidigital number, since it uses as much as digits as its factorization.

34287857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 376320, while the sum is 44.

The square root of 34287857 is about 5855.5834038975. The cubic root of 34287857 is about 324.8728717775.

The spelling of 34287857 in words is "thirty-four million, two hundred eighty-seven thousand, eight hundred fifty-seven".