9997000747 has 2 divisors, whose sum is σ = 9997000748. Its totient is φ = 9997000746.

The previous prime is 9997000703. The next prime is 9997000823. The reversal of 9997000747 is 7470007999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9997000747 - 2⁷ = 9997000619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9997000694 and 9997000703.

It is not a weakly prime, because it can be changed into another prime (9997004747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4998500373 + 4998500374.

It is an arithmetic number, because the mean of its divisors is an integer number (4998500374).

Almost surely, 2^9997000747 is an apocalyptic number.

9997000747 is a deficient number, since it is larger than the sum of its proper divisors (1).

9997000747 is an equidigital number, since it uses as much as digits as its factorization.

9997000747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000188, while the sum is 52.

The square root of 9997000747 is about 99985.0026103915. The cubic root of 9997000747 is about 2154.2192786711.

The spelling of 9997000747 in words is "nine billion, nine hundred ninety-seven million, seven hundred forty-seven", and thus it is an aban number.