38091065 has 8 divisors (see below), whose sum is σ = 47285640. Its totient is φ = 29421952.

The previous prime is 38091061. The next prime is 38091083. The reversal of 38091065 is 56019083.

It can be written as a sum of positive squares in 4 ways, for example, as 2795584 + 35295481 = 1672^2 + 5941^2 .

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 38091065 - 2² = 38091061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38091061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131204 + ... + 131493.

It is an arithmetic number, because the mean of its divisors is an integer number (5910705).

Almost surely, 2^38091065 is an apocalyptic number.

It is an amenable number.

38091065 is a deficient number, since it is larger than the sum of its proper divisors (9194575).

38091065 is a wasteful number, since it uses less digits than its factorization.

38091065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262731.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 38091065 is about 6171.7959298732. The cubic root of 38091065 is about 336.4658863390.

The spelling of 38091065 in words is "thirty-eight million, ninety-one thousand, sixty-five".