993684479 has 8 divisors (see below), whose sum is σ = 1037219040. Its totient is φ = 950177536.

The previous prime is 993684413. The next prime is 993684491. The reversal of 993684479 is 974486399.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-993684479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993684409) 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, 106307 + ... + 115275.

It is an arithmetic number, because the mean of its divisors is an integer number (129652380).

Almost surely, 2^993684479 is an apocalyptic number.

993684479 is a deficient number, since it is larger than the sum of its proper divisors (43534561).

993684479 is a wasteful number, since it uses less digits than its factorization.

993684479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13809.

The product of its digits is 11757312, while the sum is 59.

The square root of 993684479 is about 31522.7612845068. The cubic root of 993684479 is about 997.8903789620.

The spelling of 993684479 in words is "nine hundred ninety-three million, six hundred eighty-four thousand, four hundred seventy-nine".