220876009 has 2 divisors, whose sum is σ = 220876010. Its totient is φ = 220876008.

The previous prime is 220875973. The next prime is 220876039. The reversal of 220876009 is 900678022.

220876009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162307600 + 58568409 = 12740^2 + 7653^2 .

It is a cyclic number.

It is not a de Polignac number, because 220876009 - 2¹³ = 220867817 is a prime.

It is a super-2 number, since 2×220876009² = 97572422703536162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220876039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110438004 + 110438005.

It is an arithmetic number, because the mean of its divisors is an integer number (110438005).

Almost surely, 2^220876009 is an apocalyptic number.

It is an amenable number.

220876009 is a deficient number, since it is larger than the sum of its proper divisors (1).

220876009 is an equidigital number, since it uses as much as digits as its factorization.

220876009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 220876009 is about 14861.8978936070. The cubic root of 220876009 is about 604.4812701849.

The spelling of 220876009 in words is "two hundred twenty million, eight hundred seventy-six thousand, nine".