947472497 has 2 divisors, whose sum is σ = 947472498. Its totient is φ = 947472496.

The previous prime is 947472479. The next prime is 947472583. The reversal of 947472497 is 794274749.

Together with previous prime (947472479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 926532721 + 20939776 = 30439^2 + 4576^2 .

It is a cyclic number.

It is not a de Polignac number, because 947472497 - 2⁶ = 947472433 is a prime.

It is not a weakly prime, because it can be changed into another prime (947472457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473736248 + 473736249.

It is an arithmetic number, because the mean of its divisors is an integer number (473736249).

Almost surely, 2^947472497 is an apocalyptic number.

It is an amenable number.

947472497 is a deficient number, since it is larger than the sum of its proper divisors (1).

947472497 is an equidigital number, since it uses as much as digits as its factorization.

947472497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3556224, while the sum is 53.

The square root of 947472497 is about 30781.0411942156. The cubic root of 947472497 is about 982.1749891753.

The spelling of 947472497 in words is "nine hundred forty-seven million, four hundred seventy-two thousand, four hundred ninety-seven".