5666394 has 8 divisors (see below), whose sum is σ = 11332800. Its totient is φ = 1888796.

The previous prime is 5666393. The next prime is 5666407. The reversal of 5666394 is 4936665.

It is a happy number.

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

5666394 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (5666393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472194 + ... + 472205.

It is an arithmetic number, because the mean of its divisors is an integer number (1416600).

Almost surely, 2^5666394 is an apocalyptic number.

5666394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5666394 is a wasteful number, since it uses less digits than its factorization.

5666394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944404.

The product of its digits is 116640, while the sum is 39.

The square root of 5666394 is about 2380.4188707032. The cubic root of 5666394 is about 178.2798484806.

The spelling of 5666394 in words is "five million, six hundred sixty-six thousand, three hundred ninety-four".