993912 has 16 divisors (see below), whose sum is σ = 2484840. Its totient is φ = 331296.

The previous prime is 993907. The next prime is 993913. The reversal of 993912 is 219399.

It is a super-2 number, since 2×993912² = 1975722127488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993913) by changing a digit.

993912 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, 20683 + ... + 20730.

2⁹⁹³⁹¹² is an apocalyptic number.

It is an amenable number.

993912 is an abundant number, since it is smaller than the sum of its proper divisors (1490928).

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

993912 is a wasteful number, since it uses less digits than its factorization.

993912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41422 (or 41418 counting only the distinct ones).

The product of its digits is 4374, while the sum is 33.

The square root of 993912 is about 996.9513528754. The cubic root of 993912 is about 99.7966534487.

The spelling of 993912 in words is "nine hundred ninety-three thousand, nine hundred twelve".