5697221 has 2 divisors, whose sum is σ = 5697222. Its totient is φ = 5697220.

The previous prime is 5697191. The next prime is 5697247. The reversal of 5697221 is 1227965.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5692996 + 4225 = 2386^2 + 65^2 .

It is a cyclic number.

It is not a de Polignac number, because 5697221 - 2¹⁸ = 5435077 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5697421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2848610 + 2848611.

It is an arithmetic number, because the mean of its divisors is an integer number (2848611).

Almost surely, 2^5697221 is an apocalyptic number.

It is an amenable number.

5697221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5697221 is an equidigital number, since it uses as much as digits as its factorization.

5697221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 32.

The square root of 5697221 is about 2386.8852088025. The cubic root of 5697221 is about 178.6025638053.

The spelling of 5697221 in words is "five million, six hundred ninety-seven thousand, two hundred twenty-one".