947685413 has 2 divisors, whose sum is σ = 947685414. Its totient is φ = 947685412.

The previous prime is 947685397. The next prime is 947685457. The reversal of 947685413 is 314586749.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 902822209 + 44863204 = 30047^2 + 6698^2 .

It is an emirp because it is prime and its reverse (314586749) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 947685413 - 2⁴ = 947685397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (947685463) 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 as a sum of consecutive naturals, namely, 473842706 + 473842707.

It is an arithmetic number, because the mean of its divisors is an integer number (473842707).

Almost surely, 2^947685413 is an apocalyptic number.

It is an amenable number.

947685413 is a deficient number, since it is larger than the sum of its proper divisors (1).

947685413 is an equidigital number, since it uses as much as digits as its factorization.

947685413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 47.

The square root of 947685413 is about 30784.4995574071. The cubic root of 947685413 is about 982.2485551128.

The spelling of 947685413 in words is "nine hundred forty-seven million, six hundred eighty-five thousand, four hundred thirteen".