557690339 has 2 divisors, whose sum is σ = 557690340. Its totient is φ = 557690338.

The previous prime is 557690333. The next prime is 557690377. The reversal of 557690339 is 933096755.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 557690339 - 2¹² = 557686243 is a prime.

It is a super-2 number, since 2×557690339² = 622037028427869842, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 557690293 and 557690302.

It is not a weakly prime, because it can be changed into another prime (557690333) 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, 278845169 + 278845170.

It is an arithmetic number, because the mean of its divisors is an integer number (278845170).

Almost surely, 2^557690339 is an apocalyptic number.

557690339 is a deficient number, since it is larger than the sum of its proper divisors (1).

557690339 is an equidigital number, since it uses as much as digits as its factorization.

557690339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 765450, while the sum is 47.

The square root of 557690339 is about 23615.4682147105. The cubic root of 557690339 is about 823.1223113444.

The spelling of 557690339 in words is "five hundred fifty-seven million, six hundred ninety thousand, three hundred thirty-nine".