993684 has 24 divisors (see below), whose sum is σ = 2455488. Its totient is φ = 311680.

The previous prime is 993683. The next prime is 993689. The reversal of 993684 is 486399.

993684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993683) 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, 2232 + ... + 2639.

It is an arithmetic number, because the mean of its divisors is an integer number (102312).

2⁹⁹³⁶⁸⁴ is an apocalyptic number.

It is an amenable number.

993684 is an abundant number, since it is smaller than the sum of its proper divisors (1461804).

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

993684 is a wasteful number, since it uses less digits than its factorization.

993684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4895 (or 4893 counting only the distinct ones).

The product of its digits is 46656, while the sum is 39.

The square root of 993684 is about 996.8369977083. The cubic root of 993684 is about 99.7890218620.

The spelling of 993684 in words is "nine hundred ninety-three thousand, six hundred eighty-four".