9642397 has 2 divisors, whose sum is σ = 9642398. Its totient is φ = 9642396.

The previous prime is 9642389. The next prime is 9642401. The reversal of 9642397 is 7932469.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6205081 + 3437316 = 2491^2 + 1854^2 .

It is a cyclic number.

It is not a de Polignac number, because 9642397 - 2³ = 9642389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9642307) 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, 4821198 + 4821199.

It is an arithmetic number, because the mean of its divisors is an integer number (4821199).

Almost surely, 2^9642397 is an apocalyptic number.

It is an amenable number.

9642397 is a deficient number, since it is larger than the sum of its proper divisors (1).

9642397 is an equidigital number, since it uses as much as digits as its factorization.

9642397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 40.

The square root of 9642397 is about 3105.2209261178. The cubic root of 9642397 is about 212.8441261524.

The spelling of 9642397 in words is "nine million, six hundred forty-two thousand, three hundred ninety-seven".