949999993 has 2 divisors, whose sum is σ = 949999994. Its totient is φ = 949999992.

The previous prime is 949999961. The next prime is 950000017. The reversal of 949999993 is 399999949.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 595506409 + 354493584 = 24403^2 + 18828^2 .

It is an emirp because it is prime and its reverse (399999949) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 949999993 - 2⁵ = 949999961 is a prime.

It is not a weakly prime, because it can be changed into another prime (949999913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474999996 + 474999997.

It is an arithmetic number, because the mean of its divisors is an integer number (474999997).

Almost surely, 2^949999993 is an apocalyptic number.

It is an amenable number.

949999993 is a deficient number, since it is larger than the sum of its proper divisors (1).

949999993 is an equidigital number, since it uses as much as digits as its factorization.

949999993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57395628, while the sum is 70.

The square root of 949999993 is about 30822.0699012899. The cubic root of 949999993 is about 983.0475700771.

The spelling of 949999993 in words is "nine hundred forty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-three".