557643343 has 2 divisors, whose sum is σ = 557643344. Its totient is φ = 557643342.

The previous prime is 557643319. The next prime is 557643347. The reversal of 557643343 is 343346755.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 557643343 - 2¹³ = 557635151 is a prime.

It is a super-3 number, since 3×557643343³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 557643296 and 557643305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557643347) 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, 278821671 + 278821672.

It is an arithmetic number, because the mean of its divisors is an integer number (278821672).

Almost surely, 2^557643343 is an apocalyptic number.

557643343 is a deficient number, since it is larger than the sum of its proper divisors (1).

557643343 is an equidigital number, since it uses as much as digits as its factorization.

557643343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 40.

The square root of 557643343 is about 23614.4731679536. The cubic root of 557643343 is about 823.0991894671.

The spelling of 557643343 in words is "five hundred fifty-seven million, six hundred forty-three thousand, three hundred forty-three".