57729613 has 2 divisors, whose sum is σ = 57729614. Its totient is φ = 57729612.

The previous prime is 57729601. The next prime is 57729629. The reversal of 57729613 is 31692775.

57729613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57729604 + 9 = 7598^2 + 3^2 .

It is a cyclic number.

It is not a de Polignac number, because 57729613 - 2²¹ = 55632461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57729313) 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, 28864806 + 28864807.

It is an arithmetic number, because the mean of its divisors is an integer number (28864807).

Almost surely, 2^57729613 is an apocalyptic number.

It is an amenable number.

57729613 is a deficient number, since it is larger than the sum of its proper divisors (1).

57729613 is an equidigital number, since it uses as much as digits as its factorization.

57729613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79380, while the sum is 40.

The square root of 57729613 is about 7598.0005922611. Note that the first 3 decimals coincide. The cubic root of 57729613 is about 386.4852127042.

The spelling of 57729613 in words is "fifty-seven million, seven hundred twenty-nine thousand, six hundred thirteen".