5646909 has 16 divisors (see below), whose sum is σ = 7960320. Its totient is φ = 3554880.

The previous prime is 5646899. The next prime is 5646917. The reversal of 5646909 is 9096465.

5646909 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5646909 - 2⁵ = 5646877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5646919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3399 + ... + 4779.

It is an arithmetic number, because the mean of its divisors is an integer number (497520).

Almost surely, 2^5646909 is an apocalyptic number.

It is an amenable number.

5646909 is a deficient number, since it is larger than the sum of its proper divisors (2313411).

5646909 is a wasteful number, since it uses less digits than its factorization.

5646909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 5646909 is about 2376.3225791125. The cubic root of 5646909 is about 178.0752637994.

It can be divided in two parts, 5646 and 909, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 5646909 in words is "five million, six hundred forty-six thousand, nine hundred nine".