993731345 has 8 divisors (see below), whose sum is σ = 1262623464. Its totient is φ = 748221184.

The previous prime is 993731279. The next prime is 993731357. The reversal of 993731345 is 543137399.

It is a happy number.

993731345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11723776 + 982007569 = 3424^2 + 31337^2 .

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 993731345 - 2¹⁴ = 993714961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 993731296 and 993731305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5845394 + ... + 5845563.

It is an arithmetic number, because the mean of its divisors is an integer number (157827933).

Almost surely, 2^993731345 is an apocalyptic number.

It is an amenable number.

993731345 is a deficient number, since it is larger than the sum of its proper divisors (268892119).

993731345 is a wasteful number, since it uses less digits than its factorization.

993731345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11690979.

The product of its digits is 306180, while the sum is 44.

The square root of 993731345 is about 31523.5046433610. The cubic root of 993731345 is about 997.9060668376.

The spelling of 993731345 in words is "nine hundred ninety-three million, seven hundred thirty-one thousand, three hundred forty-five".