947245471 has 4 divisors (see below), whose sum is σ = 959236000. Its totient is φ = 935254944.

The previous prime is 947245469. The next prime is 947245477. The reversal of 947245471 is 174542749.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 947245471 - 2¹ = 947245469 is a prime.

It is a super-3 number, since 3×947245471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947245477) 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, 5995146 + ... + 5995303.

It is an arithmetic number, because the mean of its divisors is an integer number (239809000).

Almost surely, 2^947245471 is an apocalyptic number.

947245471 is a deficient number, since it is larger than the sum of its proper divisors (11990529).

947245471 is a wasteful number, since it uses less digits than its factorization.

947245471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11990528.

The product of its digits is 282240, while the sum is 43.

The square root of 947245471 is about 30777.3532162855. The cubic root of 947245471 is about 982.0965358617.

The spelling of 947245471 in words is "nine hundred forty-seven million, two hundred forty-five thousand, four hundred seventy-one".