38564905 has 8 divisors (see below), whose sum is σ = 48290112. Its totient is φ = 29510448.

The previous prime is 38564893. The next prime is 38564921. The reversal of 38564905 is 50946583.

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

It is a cyclic number.

It is not a de Polignac number, because 38564905 - 2⁷ = 38564777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 167559 + ... + 167788.

It is an arithmetic number, because the mean of its divisors is an integer number (6036264).

Almost surely, 2^38564905 is an apocalyptic number.

It is an amenable number.

38564905 is a deficient number, since it is larger than the sum of its proper divisors (9725207).

38564905 is a wasteful number, since it uses less digits than its factorization.

38564905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335375.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 38564905 is about 6210.0648144766. The cubic root of 38564905 is about 337.8553148704.

The spelling of 38564905 in words is "thirty-eight million, five hundred sixty-four thousand, nine hundred five".