57711893 has 4 divisors (see below), whose sum is σ = 57964140. Its totient is φ = 57459648.

The previous prime is 57711881. The next prime is 57711937. The reversal of 57711893 is 39811775.

57711893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32239684 + 25472209 = 5678^2 + 5047^2 .

It is a cyclic number.

It is not a de Polignac number, because 57711893 - 2⁴ = 57711877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57711893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57711833) 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 3 ways as a sum of consecutive naturals, for example, 125780 + ... + 126237.

It is an arithmetic number, because the mean of its divisors is an integer number (14491035).

Almost surely, 2^57711893 is an apocalyptic number.

It is an amenable number.

57711893 is a deficient number, since it is larger than the sum of its proper divisors (252247).

57711893 is a wasteful number, since it uses less digits than its factorization.

57711893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252246.

The product of its digits is 52920, while the sum is 41.

The square root of 57711893 is about 7596.8344065143. The cubic root of 57711893 is about 386.4456650126.

The spelling of 57711893 in words is "fifty-seven million, seven hundred eleven thousand, eight hundred ninety-three".