3784036665 has 8 divisors (see below), whose sum is σ = 6054458688. Its totient is φ = 2018152880.

The previous prime is 3784036621. The next prime is 3784036673. The reversal of 3784036665 is 5666304873.

It is a happy number.

3784036665 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-3784036665 is a prime.

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, 126134541 + ... + 126134570.

It is an arithmetic number, because the mean of its divisors is an integer number (756807336).

Almost surely, 2^3784036665 is an apocalyptic number.

It is an amenable number.

3784036665 is a deficient number, since it is larger than the sum of its proper divisors (2270422023).

3784036665 is a wasteful number, since it uses less digits than its factorization.

3784036665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252269119.

The product of its (nonzero) digits is 2177280, while the sum is 48.

The square root of 3784036665 is about 61514.5240166906. The cubic root of 3784036665 is about 1558.3025401435.

The spelling of 3784036665 in words is "three billion, seven hundred eighty-four million, thirty-six thousand, six hundred sixty-five".