5666377 has 2 divisors, whose sum is σ = 5666378. Its totient is φ = 5666376.

The previous prime is 5666347. The next prime is 5666383. The reversal of 5666377 is 7736665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3297856 + 2368521 = 1816^2 + 1539^2 .

It is a cyclic number.

It is not a de Polignac number, because 5666377 - 2⁷ = 5666249 is a prime.

It is a super-2 number, since 2×5666377² = 64215656612258, which contains 22 as substring.

It is a Chen prime.

5666377 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (5666317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2833188 + 2833189.

It is an arithmetic number, because the mean of its divisors is an integer number (2833189).

Almost surely, 2^5666377 is an apocalyptic number.

It is an amenable number.

5666377 is a deficient number, since it is larger than the sum of its proper divisors (1).

5666377 is an equidigital number, since it uses as much as digits as its factorization.

5666377 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 5666377 is about 2380.4152999004. The cubic root of 5666377 is about 178.2796701920.

The spelling of 5666377 in words is "five million, six hundred sixty-six thousand, three hundred seventy-seven".