947380009397 has 2 divisors, whose sum is σ = 947380009398. Its totient is φ = 947380009396.

The previous prime is 947380009391. The next prime is 947380009441. The reversal of 947380009397 is 793900083749.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 497023590001 + 450356419396 = 704999^2 + 671086^2 .

It is a cyclic number.

It is not a de Polignac number, because 947380009397 - 2⁶ = 947380009333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (947380009391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473690004698 + 473690004699.

It is an arithmetic number, because the mean of its divisors is an integer number (473690004699).

Almost surely, 2^947380009397 is an apocalyptic number.

It is an amenable number.

947380009397 is a deficient number, since it is larger than the sum of its proper divisors (1).

947380009397 is an equidigital number, since it uses as much as digits as its factorization.

947380009397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10287648, while the sum is 59.

The spelling of 947380009397 in words is "nine hundred forty-seven billion, three hundred eighty million, nine thousand, three hundred ninety-seven".