558638947 has 4 divisors (see below), whose sum is σ = 560046496. Its totient is φ = 557231400.

The previous prime is 558638939. The next prime is 558638953. The reversal of 558638947 is 749836855.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 558638947 - 2³ = 558638939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (558638347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703179 + ... + 703972.

It is an arithmetic number, because the mean of its divisors is an integer number (140011624).

Almost surely, 2^558638947 is an apocalyptic number.

558638947 is a deficient number, since it is larger than the sum of its proper divisors (1407549).

558638947 is a wasteful number, since it uses less digits than its factorization.

558638947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407548.

The product of its digits is 7257600, while the sum is 55.

The square root of 558638947 is about 23635.5441443602. The cubic root of 558638947 is about 823.5887458861.

The spelling of 558638947 in words is "five hundred fifty-eight million, six hundred thirty-eight thousand, nine hundred forty-seven".