993138 has 8 divisors (see below), whose sum is σ = 1986288. Its totient is φ = 331044.

The previous prime is 993137. The next prime is 993169. The reversal of 993138 is 831399.

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

993138 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 993099 and 993108.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 993138.

It is not an unprimeable number, because it can be changed into a prime (993137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82756 + ... + 82767.

It is an arithmetic number, because the mean of its divisors is an integer number (248286).

2⁹⁹³¹³⁸ is an apocalyptic number.

993138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

993138 is a wasteful number, since it uses less digits than its factorization.

993138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165528.

The product of its digits is 5832, while the sum is 33.

The square root of 993138 is about 996.5630938380. The cubic root of 993138 is about 99.7707414736.

The spelling of 993138 in words is "nine hundred ninety-three thousand, one hundred thirty-eight".