993315959 has 2 divisors, whose sum is σ = 993315960. Its totient is φ = 993315958.

The previous prime is 993315943. The next prime is 993315971. The reversal of 993315959 is 959513399.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 993315959 - 2⁴ = 993315943 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 993315959.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (993315259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496657979 + 496657980.

It is an arithmetic number, because the mean of its divisors is an integer number (496657980).

Almost surely, 2^993315959 is an apocalyptic number.

993315959 is a deficient number, since it is larger than the sum of its proper divisors (1).

993315959 is an equidigital number, since it uses as much as digits as its factorization.

993315959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1476225, while the sum is 53.

The square root of 993315959 is about 31516.9154423462. The cubic root of 993315959 is about 997.7670037726.

The spelling of 993315959 in words is "nine hundred ninety-three million, three hundred fifteen thousand, nine hundred fifty-nine".