57147983 has 2 divisors, whose sum is σ = 57147984. Its totient is φ = 57147982.

The previous prime is 57147967. The next prime is 57148019. The reversal of 57147983 is 38974175.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57147983 - 2⁴ = 57147967 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57147683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28573991 + 28573992.

It is an arithmetic number, because the mean of its divisors is an integer number (28573992).

Almost surely, 2^57147983 is an apocalyptic number.

57147983 is a deficient number, since it is larger than the sum of its proper divisors (1).

57147983 is an equidigital number, since it uses as much as digits as its factorization.

57147983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 44.

The square root of 57147983 is about 7559.6284961630. The cubic root of 57147983 is about 385.1828737110.

The spelling of 57147983 in words is "fifty-seven million, one hundred forty-seven thousand, nine hundred eighty-three".