5769821 has 2 divisors, whose sum is σ = 5769822. Its totient is φ = 5769820.

The previous prime is 5769809. The next prime is 5769823. The reversal of 5769821 is 1289675.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5707321 + 62500 = 2389^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 5769821 - 2²² = 1575517 is a prime.

Together with 5769823, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5769823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2884910 + 2884911.

It is an arithmetic number, because the mean of its divisors is an integer number (2884911).

Almost surely, 2^5769821 is an apocalyptic number.

It is an amenable number.

5769821 is a deficient number, since it is larger than the sum of its proper divisors (1).

5769821 is an equidigital number, since it uses as much as digits as its factorization.

5769821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 38.

The square root of 5769821 is about 2402.0451702664. The cubic root of 5769821 is about 179.3580113571.

The spelling of 5769821 in words is "five million, seven hundred sixty-nine thousand, eight hundred twenty-one".