38065665 has 32 divisors (see below), whose sum is σ = 66759552. Its totient is φ = 18368000.

The previous prime is 38065663. The next prime is 38065673. The reversal of 38065665 is 56656083.

It is not a de Polignac number, because 38065665 - 2¹ = 38065663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38065663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45955 + ... + 46775.

It is an arithmetic number, because the mean of its divisors is an integer number (2086236).

Almost surely, 2^38065665 is an apocalyptic number.

It is an amenable number.

38065665 is a deficient number, since it is larger than the sum of its proper divisors (28693887).

38065665 is a wasteful number, since it uses less digits than its factorization.

38065665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 38065665 is about 6169.7378388389. The cubic root of 38065665 is about 336.3910819737.

The spelling of 38065665 in words is "thirty-eight million, sixty-five thousand, six hundred sixty-five".