57243829 has 2 divisors, whose sum is σ = 57243830. Its totient is φ = 57243828.

The previous prime is 57243733. The next prime is 57243839. The reversal of 57243829 is 92834275.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46991025 + 10252804 = 6855^2 + 3202^2 .

It is a cyclic number.

It is not a de Polignac number, because 57243829 - 2⁹ = 57243317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57243791 and 57243800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57243839) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28621914 + 28621915.

It is an arithmetic number, because the mean of its divisors is an integer number (28621915).

Almost surely, 2^57243829 is an apocalyptic number.

It is an amenable number.

57243829 is a deficient number, since it is larger than the sum of its proper divisors (1).

57243829 is an equidigital number, since it uses as much as digits as its factorization.

57243829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 57243829 is about 7565.9651730629. The cubic root of 57243829 is about 385.3980905090.

The spelling of 57243829 in words is "fifty-seven million, two hundred forty-three thousand, eight hundred twenty-nine".