947313865 has 16 divisors (see below), whose sum is σ = 1231642368. Its totient is φ = 696681216.

The previous prime is 947313847. The next prime is 947313869. The reversal of 947313865 is 568313749.

It is a de Polignac number, because none of the positive numbers 2^k-947313865 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (947313869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125937 + ... + 133246.

It is an arithmetic number, because the mean of its divisors is an integer number (76977648).

Almost surely, 2^947313865 is an apocalyptic number.

It is an amenable number.

947313865 is a deficient number, since it is larger than the sum of its proper divisors (284328503).

947313865 is a wasteful number, since it uses less digits than its factorization.

947313865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259248.

The product of its digits is 544320, while the sum is 46.

The square root of 947313865 is about 30778.4643054198. The cubic root of 947313865 is about 982.1201720771.

It can be divided in two parts, 94731 and 3865, that added together give a square (98596 = 314²).

The spelling of 947313865 in words is "nine hundred forty-seven million, three hundred thirteen thousand, eight hundred sixty-five".