993243854227 has 2 divisors, whose sum is σ = 993243854228. Its totient is φ = 993243854226.

The previous prime is 993243854209. The next prime is 993243854231. The reversal of 993243854227 is 722458342399.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (722458342399) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 993243854227 - 2³⁹ = 443488040339 is a prime.

It is not a weakly prime, because it can be changed into another prime (993243854297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496621927113 + 496621927114.

It is an arithmetic number, because the mean of its divisors is an integer number (496621927114).

Almost surely, 2^993243854227 is an apocalyptic number.

993243854227 is a deficient number, since it is larger than the sum of its proper divisors (1).

993243854227 is an equidigital number, since it uses as much as digits as its factorization.

993243854227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26127360, while the sum is 58.

The spelling of 993243854227 in words is "nine hundred ninety-three billion, two hundred forty-three million, eight hundred fifty-four thousand, two hundred twenty-seven".