993663743 has 8 divisors (see below), whose sum is σ = 1028344080. Its totient is φ = 959011200.

The previous prime is 993663731. The next prime is 993663751. The reversal of 993663743 is 347366399.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 993663743 - 2¹⁴ = 993647359 is a prime.

It is a super-3 number, since 3×993663743³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 993663691 and 993663700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993663703) 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, 87968 + ... + 98618.

It is an arithmetic number, because the mean of its divisors is an integer number (128543010).

Almost surely, 2^993663743 is an apocalyptic number.

993663743 is a deficient number, since it is larger than the sum of its proper divisors (34680337).

993663743 is a wasteful number, since it uses less digits than its factorization.

993663743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13897.

The product of its digits is 2204496, while the sum is 50.

The square root of 993663743 is about 31522.4323775942. The cubic root of 993663743 is about 997.8834376578.

The spelling of 993663743 in words is "nine hundred ninety-three million, six hundred sixty-three thousand, seven hundred forty-three".