947852811 has 6 divisors (see below), whose sum is σ = 1369120740. Its totient is φ = 631901868.

The previous prime is 947852783. The next prime is 947852861. The reversal of 947852811 is 118258749.

It is not a de Polignac number, because 947852811 - 2¹³ = 947844619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (947852861) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52658481 + ... + 52658498.

It is an arithmetic number, because the mean of its divisors is an integer number (228186790).

Almost surely, 2^947852811 is an apocalyptic number.

947852811 is a deficient number, since it is larger than the sum of its proper divisors (421267929).

947852811 is a wasteful number, since it uses less digits than its factorization.

947852811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105316985 (or 105316982 counting only the distinct ones).

The product of its digits is 161280, while the sum is 45.

The square root of 947852811 is about 30787.2183056541. The cubic root of 947852811 is about 982.3063861050.

The spelling of 947852811 in words is "nine hundred forty-seven million, eight hundred fifty-two thousand, eight hundred eleven".