9631397 has 2 divisors, whose sum is σ = 9631398. Its totient is φ = 9631396.

The previous prime is 9631379. The next prime is 9631409. The reversal of 9631397 is 7931369.

Together with previous prime (9631379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9156676 + 474721 = 3026^2 + 689^2 .

It is an emirp because it is prime and its reverse (7931369) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9631397 - 2¹⁰ = 9630373 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9631397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9631327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4815698 + 4815699.

It is an arithmetic number, because the mean of its divisors is an integer number (4815699).

Almost surely, 2^9631397 is an apocalyptic number.

It is an amenable number.

9631397 is a deficient number, since it is larger than the sum of its proper divisors (1).

9631397 is an equidigital number, since it uses as much as digits as its factorization.

9631397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30618, while the sum is 38.

The square root of 9631397 is about 3103.4492101531. The cubic root of 9631397 is about 212.7631581710.

The spelling of 9631397 in words is "nine million, six hundred thirty-one thousand, three hundred ninety-seven".