220963697 has 2 divisors, whose sum is σ = 220963698. Its totient is φ = 220963696.

The previous prime is 220963669. The next prime is 220963723. The reversal of 220963697 is 796369022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188348176 + 32615521 = 13724^2 + 5711^2 .

It is a cyclic number.

It is not a de Polignac number, because 220963697 - 2¹⁰ = 220962673 is a prime.

It is not a weakly prime, because it can be changed into another prime (220963657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110481848 + 110481849.

It is an arithmetic number, because the mean of its divisors is an integer number (110481849).

Almost surely, 2^220963697 is an apocalyptic number.

It is an amenable number.

220963697 is a deficient number, since it is larger than the sum of its proper divisors (1).

220963697 is an equidigital number, since it uses as much as digits as its factorization.

220963697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 220963697 is about 14864.8476951498. The cubic root of 220963697 is about 604.5612528276.

The spelling of 220963697 in words is "two hundred twenty million, nine hundred sixty-three thousand, six hundred ninety-seven".