3648309 has 8 divisors (see below), whose sum is σ = 5559360. Its totient is φ = 2084736.

The previous prime is 3648301. The next prime is 3648317. The reversal of 3648309 is 9038463.

It is an interprime number because it is at equal distance from previous prime (3648301) and next prime (3648317).

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

It is not a de Polignac number, because 3648309 - 2³ = 3648301 is a prime.

3648309 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3648309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3648301) 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, 86844 + ... + 86885.

It is an arithmetic number, because the mean of its divisors is an integer number (694920).

Almost surely, 2^3648309 is an apocalyptic number.

It is an amenable number.

3648309 is a deficient number, since it is larger than the sum of its proper divisors (1911051).

3648309 is a wasteful number, since it uses less digits than its factorization.

3648309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173739.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 3648309 is about 1910.0547112583. The cubic root of 3648309 is about 153.9443915715.

The spelling of 3648309 in words is "three million, six hundred forty-eight thousand, three hundred nine".