5665994 has 8 divisors (see below), whose sum is σ = 8773248. Its totient is φ = 2741580.

The previous prime is 5665993. The next prime is 5665997. The reversal of 5665994 is 4995665.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5665993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45632 + ... + 45755.

It is an arithmetic number, because the mean of its divisors is an integer number (1096656).

Almost surely, 2^5665994 is an apocalyptic number.

5665994 is a deficient number, since it is larger than the sum of its proper divisors (3107254).

5665994 is a wasteful number, since it uses less digits than its factorization.

5665994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91420.

The product of its digits is 291600, while the sum is 44.

The square root of 5665994 is about 2380.3348503940. The cubic root of 5665994 is about 178.2756533601.

The spelling of 5665994 in words is "five million, six hundred sixty-five thousand, nine hundred ninety-four".