5646817 has 4 divisors (see below), whose sum is σ = 6160176. Its totient is φ = 5133460.

The previous prime is 5646811. The next prime is 5646821. The reversal of 5646817 is 7186465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5646817 - 2⁷ = 5646689 is a prime.

5646817 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5646811) 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, 256663 + ... + 256684.

It is an arithmetic number, because the mean of its divisors is an integer number (1540044).

Almost surely, 2^5646817 is an apocalyptic number.

It is an amenable number.

5646817 is a deficient number, since it is larger than the sum of its proper divisors (513359).

5646817 is a wasteful number, since it uses less digits than its factorization.

5646817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513358.

The product of its digits is 40320, while the sum is 37.

The square root of 5646817 is about 2376.3032213924. The cubic root of 5646817 is about 178.0742967208.

It can be divided in two parts, 564 and 6817, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 5646817 in words is "five million, six hundred forty-six thousand, eight hundred seventeen".