9747457 has 2 divisors, whose sum is σ = 9747458. Its totient is φ = 9747456.

The previous prime is 9747421. The next prime is 9747467. The reversal of 9747457 is 7547479.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9339136 + 408321 = 3056^2 + 639^2 .

It is an emirp because it is prime and its reverse (7547479) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9747457 - 2¹¹ = 9745409 is a prime.

9747457 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (9747467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4873728 + 4873729.

It is an arithmetic number, because the mean of its divisors is an integer number (4873729).

Almost surely, 2^9747457 is an apocalyptic number.

It is an amenable number.

9747457 is a deficient number, since it is larger than the sum of its proper divisors (1).

9747457 is an equidigital number, since it uses as much as digits as its factorization.

9747457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 246960, while the sum is 43.

The square root of 9747457 is about 3122.0917667487. The cubic root of 9747457 is about 213.6143591861.

The spelling of 9747457 in words is "nine million, seven hundred forty-seven thousand, four hundred fifty-seven".