947993971 has 2 divisors, whose sum is σ = 947993972. Its totient is φ = 947993970.

The previous prime is 947993957. The next prime is 947994007. The reversal of 947993971 is 179399749.

947993971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (179399749) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 947993971 - 2⁵ = 947993939 is a prime.

It is not a weakly prime, because it can be changed into another prime (947993911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473996985 + 473996986.

It is an arithmetic number, because the mean of its divisors is an integer number (473996986).

Almost surely, 2^947993971 is an apocalyptic number.

947993971 is a deficient number, since it is larger than the sum of its proper divisors (1).

947993971 is an equidigital number, since it uses as much as digits as its factorization.

947993971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3857868, while the sum is 58.

The square root of 947993971 is about 30789.5107301172. The cubic root of 947993971 is about 982.3551473631.

The spelling of 947993971 in words is "nine hundred forty-seven million, nine hundred ninety-three thousand, nine hundred seventy-one".