947317 has 6 divisors (see below), whose sum is σ = 1102038. Its totient is φ = 811944.

The previous prime is 947299. The next prime is 947327. The reversal of 947317 is 713749.

It can be written as a sum of positive squares in only one way, i.e., 933156 + 14161 = 966^2 + 119^2 .

It is a de Polignac number, because none of the positive numbers 2^k-947317 is a prime.

It is an Ulam number.

947317 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947327) 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, 9618 + ... + 9715.

It is an arithmetic number, because the mean of its divisors is an integer number (183673).

2⁹⁴⁷³¹⁷ is an apocalyptic number.

It is an amenable number.

947317 is a deficient number, since it is larger than the sum of its proper divisors (154721).

947317 is a wasteful number, since it uses less digits than its factorization.

947317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19347 (or 19340 counting only the distinct ones).

The product of its digits is 5292, while the sum is 31.

The square root of 947317 is about 973.3021113714. The cubic root of 947317 is about 98.2121255471.

The spelling of 947317 in words is "nine hundred forty-seven thousand, three hundred seventeen".