220958873 has 2 divisors, whose sum is σ = 220958874. Its totient is φ = 220958872.

The previous prime is 220958851. The next prime is 220958893. The reversal of 220958873 is 378859022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117570649 + 103388224 = 10843^2 + 10168^2 .

It is a cyclic number.

It is not a de Polignac number, because 220958873 - 2¹² = 220954777 is a prime.

It is not a weakly prime, because it can be changed into another prime (220958833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110479436 + 110479437.

It is an arithmetic number, because the mean of its divisors is an integer number (110479437).

Almost surely, 2^220958873 is an apocalyptic number.

It is an amenable number.

220958873 is a deficient number, since it is larger than the sum of its proper divisors (1).

220958873 is an equidigital number, since it uses as much as digits as its factorization.

220958873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 220958873 is about 14864.6854322586. The cubic root of 220958873 is about 604.5568532742.

The spelling of 220958873 in words is "two hundred twenty million, nine hundred fifty-eight thousand, eight hundred seventy-three".