993289147 has 2 divisors, whose sum is σ = 993289148. Its totient is φ = 993289146.

The previous prime is 993289139. The next prime is 993289151. The reversal of 993289147 is 741982399.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (741982399) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 993289147 - 2³ = 993289139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 993289094 and 993289103.

It is not a weakly prime, because it can be changed into another prime (993289127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496644573 + 496644574.

It is an arithmetic number, because the mean of its divisors is an integer number (496644574).

Almost surely, 2^993289147 is an apocalyptic number.

993289147 is a deficient number, since it is larger than the sum of its proper divisors (1).

993289147 is an equidigital number, since it uses as much as digits as its factorization.

993289147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 52.

The square root of 993289147 is about 31516.4900805911. The cubic root of 993289147 is about 997.7580263104.

The spelling of 993289147 in words is "nine hundred ninety-three million, two hundred eighty-nine thousand, one hundred forty-seven".