557923 has 8 divisors (see below), whose sum is σ = 607392. Its totient is φ = 510336.

The previous prime is 557903. The next prime is 557927. The reversal of 557923 is 329755.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 557923 - 2⁵ = 557891 is a prime.

It is a super-2 number, since 2×557923² = 622556147858, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (557927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186 + ... + 1072.

It is an arithmetic number, because the mean of its divisors is an integer number (75924).

2⁵⁵⁷⁹²³ is an apocalyptic number.

557923 is a deficient number, since it is larger than the sum of its proper divisors (49469).

557923 is a wasteful number, since it uses less digits than its factorization.

557923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941.

The product of its digits is 9450, while the sum is 31.

The square root of 557923 is about 746.9424341942. The cubic root of 557923 is about 82.3236760661.

The spelling of 557923 in words is "five hundred fifty-seven thousand, nine hundred twenty-three".