947305073 has 16 divisors (see below), whose sum is σ = 1118544000. Its totient is φ = 790922880.

The previous prime is 947305061. The next prime is 947305081. The reversal of 947305073 is 370503749.

It is not a de Polignac number, because 947305073 - 2⁴ = 947305057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (947305033) 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 15 ways as a sum of consecutive naturals, for example, 11813 + ... + 45101.

It is an arithmetic number, because the mean of its divisors is an integer number (69909000).

Almost surely, 2^947305073 is an apocalyptic number.

It is an amenable number.

947305073 is a deficient number, since it is larger than the sum of its proper divisors (171238927).

947305073 is a wasteful number, since it uses less digits than its factorization.

947305073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33512.

The product of its (nonzero) digits is 79380, while the sum is 38.

The square root of 947305073 is about 30778.3214779494. The cubic root of 947305073 is about 982.1171337221.

The spelling of 947305073 in words is "nine hundred forty-seven million, three hundred five thousand, seventy-three".