3783665 has 8 divisors (see below), whose sum is σ = 4558248. Its totient is φ = 3015040.

The previous prime is 3783649. The next prime is 3783671. The reversal of 3783665 is 5663873.

It can be written as a sum of positive squares in 4 ways, for example, as 485809 + 3297856 = 697^2 + 1816^2 .

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

It is not a de Polignac number, because 3783665 - 2⁴ = 3783649 is a prime.

It is a super-2 number, since 2×3783665² = 28632241664450, which contains 22 as substring.

It is a Duffinian number.

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, 59 + ... + 2751.

It is an arithmetic number, because the mean of its divisors is an integer number (569781).

Almost surely, 2^3783665 is an apocalyptic number.

It is an amenable number.

3783665 is a deficient number, since it is larger than the sum of its proper divisors (774583).

3783665 is a wasteful number, since it uses less digits than its factorization.

3783665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2979.

The product of its digits is 90720, while the sum is 38.

The square root of 3783665 is about 1945.1645174638. The cubic root of 3783665 is about 155.8251520071.

The spelling of 3783665 in words is "three million, seven hundred eighty-three thousand, six hundred sixty-five".