57868009 has 2 divisors, whose sum is σ = 57868010. Its totient is φ = 57868008.

The previous prime is 57867989. The next prime is 57868073. The reversal of 57868009 is 90086875.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33315984 + 24552025 = 5772^2 + 4955^2 .

It is a cyclic number.

It is not a de Polignac number, because 57868009 - 2⁹ = 57867497 is a prime.

It is not a weakly prime, because it can be changed into another prime (57868099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28934004 + 28934005.

It is an arithmetic number, because the mean of its divisors is an integer number (28934005).

Almost surely, 2^57868009 is an apocalyptic number.

It is an amenable number.

57868009 is a deficient number, since it is larger than the sum of its proper divisors (1).

57868009 is an equidigital number, since it uses as much as digits as its factorization.

57868009 is an evil number, because the sum of its binary digits is even.

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

The square root of 57868009 is about 7607.1025364458. The cubic root of 57868009 is about 386.7938083512.

The spelling of 57868009 in words is "fifty-seven million, eight hundred sixty-eight thousand, nine".