57829813 has 2 divisors, whose sum is σ = 57829814. Its totient is φ = 57829812.

The previous prime is 57829781. The next prime is 57829859. The reversal of 57829813 is 31892875.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30393169 + 27436644 = 5513^2 + 5238^2 .

It is a cyclic number.

It is not a de Polignac number, because 57829813 - 2⁵ = 57829781 is a prime.

It is a super-2 number, since 2×57829813² = 6688574543229938, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57829813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57829313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28914906 + 28914907.

It is an arithmetic number, because the mean of its divisors is an integer number (28914907).

Almost surely, 2^57829813 is an apocalyptic number.

It is an amenable number.

57829813 is a deficient number, since it is larger than the sum of its proper divisors (1).

57829813 is an equidigital number, since it uses as much as digits as its factorization.

57829813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 43.

The square root of 57829813 is about 7604.5915735166. The cubic root of 57829813 is about 386.7086880444.

The spelling of 57829813 in words is "fifty-seven million, eight hundred twenty-nine thousand, eight hundred thirteen".