223020797 has 2 divisors, whose sum is σ = 223020798. Its totient is φ = 223020796.

The previous prime is 223020769. The next prime is 223020799. The reversal of 223020797 is 797020322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140683321 + 82337476 = 11861^2 + 9074^2 .

It is a cyclic number.

It is not a de Polignac number, because 223020797 - 2²² = 218826493 is a prime.

Together with 223020799, 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 (223020799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111510398 + 111510399.

It is an arithmetic number, because the mean of its divisors is an integer number (111510399).

Almost surely, 2^223020797 is an apocalyptic number.

It is an amenable number.

223020797 is a deficient number, since it is larger than the sum of its proper divisors (1).

223020797 is an equidigital number, since it uses as much as digits as its factorization.

223020797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 223020797 is about 14933.8808418977. The cubic root of 223020797 is about 606.4315502323.

The spelling of 223020797 in words is "two hundred twenty-three million, twenty thousand, seven hundred ninety-seven".