57705089 has 16 divisors (see below), whose sum is σ = 67587408. Its totient is φ = 48771072.

The previous prime is 57705077. The next prime is 57705101. The reversal of 57705089 is 98050775.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (57705077) and next prime (57705101).

It can be written as a sum of positive squares in 8 ways, for example, as 16321600 + 41383489 = 4040^2 + 6433^2 .

It is a cyclic number.

It is not a de Polignac number, because 57705089 - 2⁸ = 57704833 is a prime.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57705289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4649 + ... + 11705.

It is an arithmetic number, because the mean of its divisors is an integer number (4224213).

Almost surely, 2^57705089 is an apocalyptic number.

It is an amenable number.

57705089 is a deficient number, since it is larger than the sum of its proper divisors (9882319).

57705089 is a wasteful number, since it uses less digits than its factorization.

57705089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7124.

The product of its (nonzero) digits is 88200, while the sum is 41.

The square root of 57705089 is about 7596.3865752080. The cubic root of 57705089 is about 386.4304776193.

The spelling of 57705089 in words is "fifty-seven million, seven hundred five thousand, eighty-nine".