38664505 has 8 divisors (see below), whose sum is σ = 50615424. Its totient is φ = 28119600.

The previous prime is 38664497. The next prime is 38664539. The reversal of 38664505 is 50546683.

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

It is not a de Polignac number, because 38664505 - 2³ = 38664497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351441 + ... + 351550.

It is an arithmetic number, because the mean of its divisors is an integer number (6326928).

Almost surely, 2^38664505 is an apocalyptic number.

It is an amenable number.

38664505 is a deficient number, since it is larger than the sum of its proper divisors (11950919).

38664505 is a wasteful number, since it uses less digits than its factorization.

38664505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703007.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 38664505 is about 6218.0788833851. The cubic root of 38664505 is about 338.1459198621.

The spelling of 38664505 in words is "thirty-eight million, six hundred sixty-four thousand, five hundred five".