38308397 has 2 divisors, whose sum is σ = 38308398. Its totient is φ = 38308396.

The previous prime is 38308339. The next prime is 38308411. The reversal of 38308397 is 79380383.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29658916 + 8649481 = 5446^2 + 2941^2 .

It is a cyclic number.

It is not a de Polignac number, because 38308397 - 2²⁰ = 37259821 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38308597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19154198 + 19154199.

It is an arithmetic number, because the mean of its divisors is an integer number (19154199).

Almost surely, 2^38308397 is an apocalyptic number.

It is an amenable number.

38308397 is a deficient number, since it is larger than the sum of its proper divisors (1).

38308397 is an equidigital number, since it uses as much as digits as its factorization.

38308397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 38308397 is about 6189.3777554775. The cubic root of 38308397 is about 337.1045852902.

The spelling of 38308397 in words is "thirty-eight million, three hundred eight thousand, three hundred ninety-seven".