5666779 has 4 divisors (see below), whose sum is σ = 5696640. Its totient is φ = 5636920.

The previous prime is 5666777. The next prime is 5666783. The reversal of 5666779 is 9776665.

5666779 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9776665 = 5 ⋅1955333.

It is a cyclic number.

It is not a de Polignac number, because 5666779 - 2¹ = 5666777 is a prime.

It is a super-2 number, since 2×5666779² = 64224768469682, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5666777) 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, 14644 + ... + 15025.

It is an arithmetic number, because the mean of its divisors is an integer number (1424160).

Almost surely, 2^5666779 is an apocalyptic number.

5666779 is a deficient number, since it is larger than the sum of its proper divisors (29861).

5666779 is a wasteful number, since it uses less digits than its factorization.

5666779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29860.

The product of its digits is 476280, while the sum is 46.

The square root of 5666779 is about 2380.4997374501. The cubic root of 5666779 is about 178.2838860977.

The spelling of 5666779 in words is "five million, six hundred sixty-six thousand, seven hundred seventy-nine".