38397393 has 6 divisors (see below), whose sum is σ = 55462914. Its totient is φ = 25598256.

The previous prime is 38397391. The next prime is 38397413. The reversal of 38397393 is 39379383.

38397393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 38155329 + 242064 = 6177^2 + 492^2 .

It is not a de Polignac number, because 38397393 - 2¹ = 38397391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38397391) 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 in 5 ways as a sum of consecutive naturals, for example, 2133180 + ... + 2133197.

It is an arithmetic number, because the mean of its divisors is an integer number (9243819).

Almost surely, 2^38397393 is an apocalyptic number.

It is an amenable number.

38397393 is a deficient number, since it is larger than the sum of its proper divisors (17065521).

38397393 is a wasteful number, since it uses less digits than its factorization.

38397393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4266383 (or 4266380 counting only the distinct ones).

The product of its digits is 367416, while the sum is 45.

The square root of 38397393 is about 6196.5629989535. The cubic root of 38397393 is about 337.3654311251.

The spelling of 38397393 in words is "thirty-eight million, three hundred ninety-seven thousand, three hundred ninety-three".