220792997 has 2 divisors, whose sum is σ = 220792998. Its totient is φ = 220792996.

The previous prime is 220792993. The next prime is 220793009. The reversal of 220792997 is 799297022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209496676 + 11296321 = 14474^2 + 3361^2 .

It is a cyclic number.

It is not a de Polignac number, because 220792997 - 2² = 220792993 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 (220792993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110396498 + 110396499.

It is an arithmetic number, because the mean of its divisors is an integer number (110396499).

Almost surely, 2^220792997 is an apocalyptic number.

It is an amenable number.

220792997 is a deficient number, since it is larger than the sum of its proper divisors (1).

220792997 is an equidigital number, since it uses as much as digits as its factorization.

220792997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 285768, while the sum is 47.

The square root of 220792997 is about 14859.1048519081. The cubic root of 220792997 is about 604.4055331427.

The spelling of 220792997 in words is "two hundred twenty million, seven hundred ninety-two thousand, nine hundred ninety-seven".