947043005 has 4 divisors (see below), whose sum is σ = 1136451612. Its totient is φ = 757634400.

The previous prime is 947042959. The next prime is 947043007. The reversal of 947043005 is 500340749.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500340749 = 10739 ⋅46591.

It can be written as a sum of positive squares in 2 ways, for example, as 244421956 + 702621049 = 15634^2 + 26507^2 .

It is not a de Polignac number, because 947043005 - 2¹⁴ = 947026621 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947043007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94704296 + ... + 94704305.

It is an arithmetic number, because the mean of its divisors is an integer number (284112903).

Almost surely, 2^947043005 is an apocalyptic number.

It is an amenable number.

947043005 is a deficient number, since it is larger than the sum of its proper divisors (189408607).

947043005 is a wasteful number, since it uses less digits than its factorization.

947043005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189408606.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 947043005 is about 30774.0638362892. The cubic root of 947043005 is about 982.0265591654.

The spelling of 947043005 in words is "nine hundred forty-seven million, forty-three thousand, five".