9997497 has 12 divisors (see below), whose sum is σ = 14526564. Its totient is φ = 6625440.

The previous prime is 9997483. The next prime is 9997517. The reversal of 9997497 is 7947999.

It can be written as a sum of positive squares in 2 ways, for example, as 6230016 + 3767481 = 2496^2 + 1941^2 .

It is not a de Polignac number, because 9997497 - 2²⁰ = 8948921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9997397) 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 in 11 ways as a sum of consecutive naturals, for example, 1654 + ... + 4767.

It is an arithmetic number, because the mean of its divisors is an integer number (1210547).

Almost surely, 2^9997497 is an apocalyptic number.

It is an amenable number.

9997497 is a deficient number, since it is larger than the sum of its proper divisors (4529067).

9997497 is a wasteful number, since it uses less digits than its factorization.

9997497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6600 (or 6597 counting only the distinct ones).

The product of its digits is 1285956, while the sum is 54.

The square root of 9997497 is about 3161.8818763515. The cubic root of 9997497 is about 215.4254923365.

The spelling of 9997497 in words is "nine million, nine hundred ninety-seven thousand, four hundred ninety-seven".