947395147 has 2 divisors, whose sum is σ = 947395148. Its totient is φ = 947395146.

The previous prime is 947395109. The next prime is 947395177. The reversal of 947395147 is 741593749.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 947395147 - 2⁷ = 947395019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 947395147.

It is not a weakly prime, because it can be changed into another prime (947395177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473697573 + 473697574.

It is an arithmetic number, because the mean of its divisors is an integer number (473697574).

Almost surely, 2^947395147 is an apocalyptic number.

947395147 is a deficient number, since it is larger than the sum of its proper divisors (1).

947395147 is an equidigital number, since it uses as much as digits as its factorization.

947395147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 49.

The square root of 947395147 is about 30779.7847133472. The cubic root of 947395147 is about 982.1482607644.

The spelling of 947395147 in words is "nine hundred forty-seven million, three hundred ninety-five thousand, one hundred forty-seven".