57243727 has 2 divisors, whose sum is σ = 57243728. Its totient is φ = 57243726.

The previous prime is 57243721. The next prime is 57243733. The reversal of 57243727 is 72734275.

It is a balanced prime because it is at equal distance from previous prime (57243721) and next prime (57243733).

It is a cyclic number.

It is not a de Polignac number, because 57243727 - 2²³ = 48855119 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57243721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28621863 + 28621864.

It is an arithmetic number, because the mean of its divisors is an integer number (28621864).

Almost surely, 2^57243727 is an apocalyptic number.

57243727 is a deficient number, since it is larger than the sum of its proper divisors (1).

57243727 is an equidigital number, since it uses as much as digits as its factorization.

57243727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82320, while the sum is 37.

The square root of 57243727 is about 7565.9584323468. The cubic root of 57243727 is about 385.3978616014.

It can be divided in two parts, 57243 and 727, that added together give a triangular number (57970 = T₃₄₀).

The spelling of 57243727 in words is "fifty-seven million, two hundred forty-three thousand, seven hundred twenty-seven".