3784865 has 8 divisors (see below), whose sum is σ = 5190720. Its totient is φ = 2595312.

The previous prime is 3784861. The next prime is 3784873. The reversal of 3784865 is 5684873.

It is a happy number.

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 3784865 - 2² = 3784861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3784861) 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, 54035 + ... + 54104.

It is an arithmetic number, because the mean of its divisors is an integer number (648840).

Almost surely, 2^3784865 is an apocalyptic number.

3784865 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3784865 is a deficient number, since it is larger than the sum of its proper divisors (1405855).

3784865 is a wasteful number, since it uses less digits than its factorization.

3784865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108151.

The product of its digits is 161280, while the sum is 41.

The square root of 3784865 is about 1945.4729502103. The cubic root of 3784865 is about 155.8416237276.

The spelling of 3784865 in words is "three million, seven hundred eighty-four thousand, eight hundred sixty-five".