557879321 has 8 divisors (see below), whose sum is σ = 559993920. Its totient is φ = 555769872.

The previous prime is 557879299. The next prime is 557879347. The reversal of 557879321 is 123978755.

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 557879321 - 2²⁶ = 490770457 is a prime.

It is a super-2 number, since 2×557879321² = 622458673598842082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557879521) 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, 459311 + ... + 460523.

It is an arithmetic number, because the mean of its divisors is an integer number (69999240).

Almost surely, 2^557879321 is an apocalyptic number.

It is an amenable number.

557879321 is a deficient number, since it is larger than the sum of its proper divisors (2114599).

557879321 is a wasteful number, since it uses less digits than its factorization.

557879321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575.

The product of its digits is 529200, while the sum is 47.

The square root of 557879321 is about 23619.4691091904. The cubic root of 557879321 is about 823.2152767545.

The spelling of 557879321 in words is "five hundred fifty-seven million, eight hundred seventy-nine thousand, three hundred twenty-one".