993486 has 32 divisors (see below), whose sum is σ = 2193408. Its totient is φ = 298080.

The previous prime is 993481. The next prime is 993493. The reversal of 993486 is 684399.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993481) by changing a digit.

993486 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 15 ways as a sum of consecutive naturals, for example, 3531 + ... + 3801.

It is an arithmetic number, because the mean of its divisors is an integer number (68544).

2⁹⁹³⁴⁸⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 993486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1096704).

993486 is an abundant number, since it is smaller than the sum of its proper divisors (1199922).

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

993486 is a wasteful number, since it uses less digits than its factorization.

993486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336.

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

The square root of 993486 is about 996.7376786296. The cubic root of 993486 is about 99.7823934842.

The spelling of 993486 in words is "nine hundred ninety-three thousand, four hundred eighty-six".