38509197 has 8 divisors (see below), whose sum is σ = 51375360. Its totient is φ = 25657920.

The previous prime is 38509189. The next prime is 38509231. The reversal of 38509197 is 79190583.

It is a happy number.

38509197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38509197 - 2³ = 38509189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38509147) 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 7 ways as a sum of consecutive naturals, for example, 5797 + ... + 10517.

It is an arithmetic number, because the mean of its divisors is an integer number (6421920).

Almost surely, 2^38509197 is an apocalyptic number.

It is an amenable number.

38509197 is a deficient number, since it is larger than the sum of its proper divisors (12866163).

38509197 is a wasteful number, since it uses less digits than its factorization.

38509197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7443.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 38509197 is about 6205.5778941207. The cubic root of 38509197 is about 337.6925562366.

The spelling of 38509197 in words is "thirty-eight million, five hundred nine thousand, one hundred ninety-seven".