5666737 has 2 divisors, whose sum is σ = 5666738. Its totient is φ = 5666736.

The previous prime is 5666711. The next prime is 5666767. The reversal of 5666737 is 7376665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5574321 + 92416 = 2361^2 + 304^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5666737 is a prime.

It is a super-2 number, since 2×5666737² = 64223816454338, which contains 22 as substring.

5666737 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5666737.

It is not a weakly prime, because it can be changed into another prime (5666767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2833368 + 2833369.

It is an arithmetic number, because the mean of its divisors is an integer number (2833369).

Almost surely, 2^5666737 is an apocalyptic number.

It is an amenable number.

5666737 is a deficient number, since it is larger than the sum of its proper divisors (1).

5666737 is an equidigital number, since it uses as much as digits as its factorization.

5666737 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 40.

The square root of 5666737 is about 2380.4909157567. The cubic root of 5666737 is about 178.2834456393.

The spelling of 5666737 in words is "five million, six hundred sixty-six thousand, seven hundred thirty-seven".