38761565 has 4 divisors (see below), whose sum is σ = 46513884. Its totient is φ = 31009248.

The previous prime is 38761561. The next prime is 38761571. The reversal of 38761565 is 56516783.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24344356 + 14417209 = 4934^2 + 3797^2 .

It is a cyclic number.

It is not a de Polignac number, because 38761565 - 2² = 38761561 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38761561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3876152 + ... + 3876161.

It is an arithmetic number, because the mean of its divisors is an integer number (11628471).

Almost surely, 2^38761565 is an apocalyptic number.

It is an amenable number.

38761565 is a deficient number, since it is larger than the sum of its proper divisors (7752319).

38761565 is an equidigital number, since it uses as much as digits as its factorization.

38761565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7752318.

The product of its digits is 151200, while the sum is 41.

The square root of 38761565 is about 6225.8786528489. The cubic root of 38761565 is about 338.4286340986.

The spelling of 38761565 in words is "thirty-eight million, seven hundred sixty-one thousand, five hundred sixty-five".