5646646 has 8 divisors (see below), whose sum is σ = 8522424. Its totient is φ = 2805840.

The previous prime is 5646637. The next prime is 5646647. The reversal of 5646646 is 6466465.

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

It is a super-3 number, since 3×5646646³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5646647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8335 + ... + 8986.

It is an arithmetic number, because the mean of its divisors is an integer number (1065303).

Almost surely, 2^5646646 is an apocalyptic number.

5646646 is a deficient number, since it is larger than the sum of its proper divisors (2875778).

5646646 is a wasteful number, since it uses less digits than its factorization.

5646646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17486.

The product of its digits is 103680, while the sum is 37.

The square root of 5646646 is about 2376.2672408633. The cubic root of 5646646 is about 178.0724991883.

The spelling of 5646646 in words is "five million, six hundred forty-six thousand, six hundred forty-six".