57700087 has 2 divisors, whose sum is σ = 57700088. Its totient is φ = 57700086.

The previous prime is 57700073. The next prime is 57700103. The reversal of 57700087 is 78000775.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57700087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57700387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28850043 + 28850044.

It is an arithmetic number, because the mean of its divisors is an integer number (28850044).

Almost surely, 2^57700087 is an apocalyptic number.

57700087 is a deficient number, since it is larger than the sum of its proper divisors (1).

57700087 is an equidigital number, since it uses as much as digits as its factorization.

57700087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13720, while the sum is 34.

The square root of 57700087 is about 7596.0573325904. The cubic root of 57700087 is about 386.4193117578.

The spelling of 57700087 in words is "fifty-seven million, seven hundred thousand, eighty-seven".