995558 has 8 divisors (see below), whose sum is σ = 1512480. Its totient is φ = 491400.

The previous prime is 995551. The next prime is 995567. The reversal of 995558 is 855599.

It is a happy number.

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

It is a super-3 number, since 3×995558³ = 2960199319335843336, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (995551) by changing a digit.

995558 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2993 + ... + 3308.

It is an arithmetic number, because the mean of its divisors is an integer number (189060).

2⁹⁹⁵⁵⁵⁸ is an apocalyptic number.

995558 is a deficient number, since it is larger than the sum of its proper divisors (516922).

995558 is a wasteful number, since it uses less digits than its factorization.

995558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6382.

The product of its digits is 81000, while the sum is 41.

The square root of 995558 is about 997.7765280863. The cubic root of 995558 is about 99.8517135533.

Adding to 995558 its sum of digits (41), we get a palindrome (995599).

The spelling of 995558 in words is "nine hundred ninety-five thousand, five hundred fifty-eight".