5646447 has 6 divisors (see below), whose sum is σ = 8155992. Its totient is φ = 3764292.

The previous prime is 5646419. The next prime is 5646449. The reversal of 5646447 is 7446465.

5646447 is a `hidden beast` number, since 5 + 6 + 4 + 644 + 7 = 666.

It is not a de Polignac number, because 5646447 - 2⁶ = 5646383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5646449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 313683 + ... + 313700.

It is an arithmetic number, because the mean of its divisors is an integer number (1359332).

Almost surely, 2^5646447 is an apocalyptic number.

5646447 is a deficient number, since it is larger than the sum of its proper divisors (2509545).

5646447 is a wasteful number, since it uses less digits than its factorization.

5646447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627389 (or 627386 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 5646447 is about 2376.2253680996. The cubic root of 5646447 is about 178.0704072772.

The spelling of 5646447 in words is "five million, six hundred forty-six thousand, four hundred forty-seven".