947343313 has 6 divisors (see below), whose sum is σ = 1102011666. Its totient is φ = 812008512.

The previous prime is 947343289. The next prime is 947343361. The reversal of 947343313 is 313343749.

It can be written as a sum of positive squares in only one way, i.e., 929762064 + 17581249 = 30492^2 + 4193^2 .

It is not a de Polignac number, because 947343313 - 2⁹ = 947342801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (947343013) 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, 9666720 + ... + 9666817.

It is an arithmetic number, because the mean of its divisors is an integer number (183668611).

Almost surely, 2^947343313 is an apocalyptic number.

It is an amenable number.

947343313 is a deficient number, since it is larger than the sum of its proper divisors (154668353).

947343313 is a wasteful number, since it uses less digits than its factorization.

947343313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19333551 (or 19333544 counting only the distinct ones).

The product of its digits is 81648, while the sum is 37.

The square root of 947343313 is about 30778.9426881431. The cubic root of 947343313 is about 982.1303486321.

The spelling of 947343313 in words is "nine hundred forty-seven million, three hundred forty-three thousand, three hundred thirteen".