3648669 has 8 divisors (see below), whose sum is σ = 5021952. Its totient is φ = 2353920.

The previous prime is 3648661. The next prime is 3648683. The reversal of 3648669 is 9668463.

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

It is not a de Polignac number, because 3648669 - 2³ = 3648661 is a prime.

It is a super-2 number, since 2×3648669² = 26625570943122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3648669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3648661) 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, 19524 + ... + 19709.

It is an arithmetic number, because the mean of its divisors is an integer number (627744).

Almost surely, 2^3648669 is an apocalyptic number.

It is an amenable number.

3648669 is a deficient number, since it is larger than the sum of its proper divisors (1373283).

3648669 is a wasteful number, since it uses less digits than its factorization.

3648669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39267.

The product of its digits is 186624, while the sum is 42.

The square root of 3648669 is about 1910.1489470719. The cubic root of 3648669 is about 153.9494549363.

The spelling of 3648669 in words is "three million, six hundred forty-eight thousand, six hundred sixty-nine".