994423393 has 4 divisors (see below), whose sum is σ = 995481108. Its totient is φ = 993365680.

The previous prime is 994423379. The next prime is 994423411. The reversal of 994423393 is 393324499.

994423393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 789160464 + 205262929 = 28092^2 + 14327^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-994423393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (994423303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527446 + ... + 529327.

It is an arithmetic number, because the mean of its divisors is an integer number (248870277).

Almost surely, 2^994423393 is an apocalyptic number.

It is an amenable number.

994423393 is a deficient number, since it is larger than the sum of its proper divisors (1057715).

994423393 is a wasteful number, since it uses less digits than its factorization.

994423393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057714.

The product of its digits is 629856, while the sum is 46.

The square root of 994423393 is about 31534.4794312511. The cubic root of 994423393 is about 998.1376648609.

The spelling of 994423393 in words is "nine hundred ninety-four million, four hundred twenty-three thousand, three hundred ninety-three".