3628865 has 8 divisors (see below), whose sum is σ = 4410240. Its totient is φ = 2866032.

The previous prime is 3628853. The next prime is 3628883. The reversal of 3628865 is 5688263.

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 3628865 - 2²⁰ = 2580289 is a prime.

It is a super-2 number, since 2×3628865² = 26337322376450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4199 + ... + 4988.

It is an arithmetic number, because the mean of its divisors is an integer number (551280).

Almost surely, 2^3628865 is an apocalyptic number.

It is an amenable number.

3628865 is a deficient number, since it is larger than the sum of its proper divisors (781375).

3628865 is an equidigital number, since it uses as much as digits as its factorization.

3628865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9271.

The product of its digits is 69120, while the sum is 38.

The square root of 3628865 is about 1904.9580047865. The cubic root of 3628865 is about 153.6704173156.

The spelling of 3628865 in words is "three million, six hundred twenty-eight thousand, eight hundred sixty-five".