38958609 has 4 divisors (see below), whose sum is σ = 51944816. Its totient is φ = 25972404.

The previous prime is 38958589. The next prime is 38958631. The reversal of 38958609 is 90685983.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 38958609 - 2¹⁶ = 38893073 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38958109) 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 in 3 ways as a sum of consecutive naturals, for example, 6493099 + ... + 6493104.

It is an arithmetic number, because the mean of its divisors is an integer number (12986204).

Almost surely, 2^38958609 is an apocalyptic number.

It is an amenable number.

38958609 is a deficient number, since it is larger than the sum of its proper divisors (12986207).

38958609 is a wasteful number, since it uses less digits than its factorization.

38958609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12986206.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 38958609 is about 6241.6831864490. The cubic root of 38958609 is about 339.0011312081.

The spelling of 38958609 in words is "thirty-eight million, nine hundred fifty-eight thousand, six hundred nine".