5666894 has 4 divisors (see below), whose sum is σ = 8500344. Its totient is φ = 2833446.

The previous prime is 5666887. The next prime is 5666911. The reversal of 5666894 is 4986665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4986665 = 5 ⋅997333.

It is a super-2 number, since 2×5666894² = 64227375214472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1416722 + ... + 1416725.

It is an arithmetic number, because the mean of its divisors is an integer number (2125086).

Almost surely, 2^5666894 is an apocalyptic number.

5666894 is a deficient number, since it is larger than the sum of its proper divisors (2833450).

5666894 is a wasteful number, since it uses less digits than its factorization.

5666894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2833449.

The product of its digits is 311040, while the sum is 44.

The square root of 5666894 is about 2380.5238919196. The cubic root of 5666894 is about 178.2850921037.

The spelling of 5666894 in words is "five million, six hundred sixty-six thousand, eight hundred ninety-four".