8238397 has 2 divisors, whose sum is σ = 8238398. Its totient is φ = 8238396.

The previous prime is 8238389. The next prime is 8238437. The reversal of 8238397 is 7938328.

It is a happy number.

It is an a-pointer prime, because the next prime (8238437) can be obtained adding 8238397 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8173881 + 64516 = 2859^2 + 254^2 .

It is a cyclic number.

It is not a de Polignac number, because 8238397 - 2³ = 8238389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8238337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4119198 + 4119199.

It is an arithmetic number, because the mean of its divisors is an integer number (4119199).

Almost surely, 2^8238397 is an apocalyptic number.

It is an amenable number.

8238397 is a deficient number, since it is larger than the sum of its proper divisors (1).

8238397 is an equidigital number, since it uses as much as digits as its factorization.

8238397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 40.

The square root of 8238397 is about 2870.2607895451. The cubic root of 8238397 is about 201.9672282881.

The spelling of 8238397 in words is "eight million, two hundred thirty-eight thousand, three hundred ninety-seven".