947147 has 4 divisors (see below), whose sum is σ = 962736. Its totient is φ = 931560.

The previous prime is 947137. The next prime is 947171. The reversal of 947147 is 741749.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741749 = 461 ⋅1609.

It is a cyclic number.

It is not a de Polignac number, because 947147 - 2⁶ = 947083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (947137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7703 + ... + 7824.

It is an arithmetic number, because the mean of its divisors is an integer number (240684).

2⁹⁴⁷¹⁴⁷ is an apocalyptic number.

947147 is a deficient number, since it is larger than the sum of its proper divisors (15589).

947147 is a wasteful number, since it uses less digits than its factorization.

947147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15588.

The product of its digits is 7056, while the sum is 32.

The square root of 947147 is about 973.2147758845. The cubic root of 947147 is about 98.2062503367.

The spelling of 947147 in words is "nine hundred forty-seven thousand, one hundred forty-seven".