557986873 has 4 divisors (see below), whose sum is σ = 558687780. Its totient is φ = 557285968.

The previous prime is 557986853. The next prime is 557986939. The reversal of 557986873 is 378689755.

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 87834384 + 470152489 = 9372^2 + 21683^2 .

It is a cyclic number.

It is not a de Polignac number, because 557986873 - 2⁵ = 557986841 is a prime.

It is a super-2 number, since 2×557986873² = 622698700880636258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557986843) 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 in 3 ways as a sum of consecutive naturals, for example, 349258 + ... + 350851.

It is an arithmetic number, because the mean of its divisors is an integer number (139671945).

Almost surely, 2^557986873 is an apocalyptic number.

It is an amenable number.

557986873 is a deficient number, since it is larger than the sum of its proper divisors (700907).

557986873 is an equidigital number, since it uses as much as digits as its factorization.

557986873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700906.

The product of its digits is 12700800, while the sum is 58.

The square root of 557986873 is about 23621.7457652901. The cubic root of 557986873 is about 823.2681751485.

The spelling of 557986873 in words is "five hundred fifty-seven million, nine hundred eighty-six thousand, eight hundred seventy-three".