220008969 has 6 divisors (see below), whose sum is σ = 317790746. Its totient is φ = 146672640.

The previous prime is 220008959. The next prime is 220008977. The reversal of 220008969 is 969800022.

It can be written as a sum of positive squares in only one way, i.e., 215649225 + 4359744 = 14685^2 + 2088^2 .

It is not a de Polignac number, because 220008969 - 2¹⁵ = 219976201 is a prime.

It is a super-2 number, since 2×220008969² = 96807892880885922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220008949) 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 in 5 ways as a sum of consecutive naturals, for example, 12222712 + ... + 12222729.

Almost surely, 2^220008969 is an apocalyptic number.

It is an amenable number.

220008969 is a deficient number, since it is larger than the sum of its proper divisors (97781777).

220008969 is a wasteful number, since it uses less digits than its factorization.

220008969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24445447 (or 24445444 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 220008969 is about 14832.6993160382. The cubic root of 220008969 is about 603.6892772282.

The spelling of 220008969 in words is "two hundred twenty million, eight thousand, nine hundred sixty-nine".