220035989 has 2 divisors, whose sum is σ = 220035990. Its totient is φ = 220035988.

The previous prime is 220035983. The next prime is 220035997. The reversal of 220035989 is 989530022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182115025 + 37920964 = 13495^2 + 6158^2 .

It is a cyclic number.

It is not a de Polignac number, because 220035989 - 2²⁰ = 218987413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220035983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110017994 + 110017995.

It is an arithmetic number, because the mean of its divisors is an integer number (110017995).

Almost surely, 2^220035989 is an apocalyptic number.

It is an amenable number.

220035989 is a deficient number, since it is larger than the sum of its proper divisors (1).

220035989 is an equidigital number, since it uses as much as digits as its factorization.

220035989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 220035989 is about 14833.6101135226. The cubic root of 220035989 is about 603.7139898822.

The spelling of 220035989 in words is "two hundred twenty million, thirty-five thousand, nine hundred eighty-nine".