947664103 has 2 divisors, whose sum is σ = 947664104. Its totient is φ = 947664102.

The previous prime is 947664049. The next prime is 947664131. The reversal of 947664103 is 301466749.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-947664103 is a prime.

It is a super-2 number, since 2×947664103² = 1796134504229589218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (947664163) 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 as a sum of consecutive naturals, namely, 473832051 + 473832052.

It is an arithmetic number, because the mean of its divisors is an integer number (473832052).

Almost surely, 2^947664103 is an apocalyptic number.

947664103 is a deficient number, since it is larger than the sum of its proper divisors (1).

947664103 is an equidigital number, since it uses as much as digits as its factorization.

947664103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 947664103 is about 30784.1534397164. The cubic root of 947664103 is about 982.2411926578.

The spelling of 947664103 in words is "nine hundred forty-seven million, six hundred sixty-four thousand, one hundred three".