57809943 has 12 divisors (see below), whose sum is σ = 86596328. Its totient is φ = 38539800.

The previous prime is 57809923. The next prime is 57809981. The reversal of 57809943 is 34990875.

57809943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57809943 - 2⁹ = 57809431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57809903) 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 in 11 ways as a sum of consecutive naturals, for example, 118708 + ... + 119193.

Almost surely, 2^57809943 is an apocalyptic number.

57809943 is a deficient number, since it is larger than the sum of its proper divisors (28786385).

57809943 is an equidigital number, since it uses as much as digits as its factorization.

57809943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237916 (or 237904 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 57809943 is about 7603.2850137293. The cubic root of 57809943 is about 386.6643926574.

It can be divided in two parts, 57 and 809943, that added together give a 4-th power (810000 = 30⁴).

The spelling of 57809943 in words is "fifty-seven million, eight hundred nine thousand, nine hundred forty-three".