3627665 has 8 divisors (see below), whose sum is σ = 4471080. Its totient is φ = 2823552.

The previous prime is 3627661. The next prime is 3627671. The reversal of 3627665 is 5667263.

It can be written as a sum of positive squares in 4 ways, for example, as 2298256 + 1329409 = 1516^2 + 1153^2 .

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 3627665 - 2² = 3627661 is a prime.

It is a d-powerful number, because it can be written as 3⁴ + 6² + 2¹⁹ + 7⁷ + 6⁶ + 6⁷ + 5⁹ .

It is not an unprimeable number, because it can be changed into a prime (3627661) 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, 9620 + ... + 9989.

It is an arithmetic number, because the mean of its divisors is an integer number (558885).

Almost surely, 2^3627665 is an apocalyptic number.

It is an amenable number.

3627665 is a deficient number, since it is larger than the sum of its proper divisors (843415).

3627665 is a wasteful number, since it uses less digits than its factorization.

3627665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19651.

The product of its digits is 45360, while the sum is 35.

The square root of 3627665 is about 1904.6430111703. The cubic root of 3627665 is about 153.6534767726.

The spelling of 3627665 in words is "three million, six hundred twenty-seven thousand, six hundred sixty-five".