3738008665 has 4 divisors (see below), whose sum is σ = 4485610404. Its totient is φ = 2990406928.

The previous prime is 3738008641. The next prime is 3738008669. The reversal of 3738008665 is 5668008373.

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 2638157769 + 1099850896 = 51363^2 + 33164^2 .

It is a cyclic number.

It is not a de Polignac number, because 3738008665 - 2¹⁵ = 3737975897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3738008669) 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, 373800862 + ... + 373800871.

It is an arithmetic number, because the mean of its divisors is an integer number (1121402601).

Almost surely, 2^3738008665 is an apocalyptic number.

It is an amenable number.

3738008665 is a deficient number, since it is larger than the sum of its proper divisors (747601739).

3738008665 is an equidigital number, since it uses as much as digits as its factorization.

3738008665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747601738.

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 3738008665 is about 61139.2563333903. The cubic root of 3738008665 is about 1551.9584906763.

The spelling of 3738008665 in words is "three billion, seven hundred thirty-eight million, eight thousand, six hundred sixty-five".