557897 has 4 divisors (see below), whose sum is σ = 587280. Its totient is φ = 528516.

The previous prime is 557891. The next prime is 557899. The reversal of 557897 is 798755.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-557897 is a prime.

It is a super-2 number, since 2×557897² = 622498125218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14663 + ... + 14700.

It is an arithmetic number, because the mean of its divisors is an integer number (146820).

2⁵⁵⁷⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

557897 is a deficient number, since it is larger than the sum of its proper divisors (29383).

557897 is a wasteful number, since it uses less digits than its factorization.

557897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29382.

The product of its digits is 88200, while the sum is 41.

The square root of 557897 is about 746.9250297051. The cubic root of 557897 is about 82.3223972464.

The spelling of 557897 in words is "five hundred fifty-seven thousand, eight hundred ninety-seven".