949443917 has 4 divisors (see below), whose sum is σ = 952261596. Its totient is φ = 946626240.

The previous prime is 949443881. The next prime is 949443947. The reversal of 949443917 is 719344949.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 719344949 = 71 ⋅10131619.

It can be written as a sum of positive squares in 2 ways, for example, as 238208356 + 711235561 = 15434^2 + 26669^2 .

It is a cyclic number.

It is not a de Polignac number, because 949443917 - 2¹⁴ = 949427533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (949443947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1408334 + ... + 1409007.

It is an arithmetic number, because the mean of its divisors is an integer number (238065399).

Almost surely, 2^949443917 is an apocalyptic number.

It is an amenable number.

949443917 is a deficient number, since it is larger than the sum of its proper divisors (2817679).

949443917 is a wasteful number, since it uses less digits than its factorization.

949443917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2817678.

The product of its digits is 979776, while the sum is 50.

The square root of 949443917 is about 30813.0478369148. The cubic root of 949443917 is about 982.8557259162.

The spelling of 949443917 in words is "nine hundred forty-nine million, four hundred forty-three thousand, nine hundred seventeen".