5706661 has 2 divisors, whose sum is σ = 5706662. Its totient is φ = 5706660.

The previous prime is 5706653. The next prime is 5706671. The reversal of 5706661 is 1666075.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4813636 + 893025 = 2194^2 + 945^2 .

It is a cyclic number.

It is not a de Polignac number, because 5706661 - 2³ = 5706653 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5706641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2853330 + 2853331.

It is an arithmetic number, because the mean of its divisors is an integer number (2853331).

Almost surely, 2^5706661 is an apocalyptic number.

It is an amenable number.

5706661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5706661 is an equidigital number, since it uses as much as digits as its factorization.

5706661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 5706661 is about 2388.8618628962. The cubic root of 5706661 is about 178.7011544369.

The spelling of 5706661 in words is "five million, seven hundred six thousand, six hundred sixty-one".