9969457 has 2 divisors, whose sum is σ = 9969458. Its totient is φ = 9969456.

The previous prime is 9969451. The next prime is 9969503. The reversal of 9969457 is 7549699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6431296 + 3538161 = 2536^2 + 1881^2 .

It is a cyclic number.

It is not a de Polignac number, because 9969457 - 2⁷ = 9969329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9969457.

It is not a weakly prime, because it can be changed into another prime (9969451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4984728 + 4984729.

It is an arithmetic number, because the mean of its divisors is an integer number (4984729).

Almost surely, 2^9969457 is an apocalyptic number.

It is an amenable number.

9969457 is a deficient number, since it is larger than the sum of its proper divisors (1).

9969457 is an equidigital number, since it uses as much as digits as its factorization.

9969457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 612360, while the sum is 49.

The square root of 9969457 is about 3157.4446946859. Note that the first 3 decimals coincide. The cubic root of 9969457 is about 215.2239023146.

The spelling of 9969457 in words is "nine million, nine hundred sixty-nine thousand, four hundred fifty-seven".