993447 has 24 divisors (see below), whose sum is σ = 1767584. Its totient is φ = 523584.

The previous prime is 993437. The next prime is 993451. The reversal of 993447 is 744399.

993447 is nontrivially palindromic in base 12.

It is not a de Polignac number, because 993447 - 2⁴ = 993431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993407) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 213 + ... + 1425.

2⁹⁹³⁴⁴⁷ is an apocalyptic number.

993447 is a deficient number, since it is larger than the sum of its proper divisors (774137).

993447 is a wasteful number, since it uses less digits than its factorization.

993447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239 (or 1236 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 993447 is about 996.7181146142. The cubic root of 993447 is about 99.7810877908.

The spelling of 993447 in words is "nine hundred ninety-three thousand, four hundred forty-seven".