220907 has 2 divisors, whose sum is σ = 220908. Its totient is φ = 220906.

The previous prime is 220903. The next prime is 220919. The reversal of 220907 is 709022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220907 - 2² = 220903 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (220901) 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, 110453 + 110454.

It is an arithmetic number, because the mean of its divisors is an integer number (110454).

2²²⁰⁹⁰⁷ is an apocalyptic number.

220907 is a deficient number, since it is larger than the sum of its proper divisors (1).

220907 is an equidigital number, since it uses as much as digits as its factorization.

220907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 220907 is about 470.0074467495. The cubic root of 220907 is about 60.4509540349.

Adding to 220907 its reverse (709022), we get a palindrome (929929).

It can be divided in two parts, 2 and 20907, that multiplied together give a palindrome (41814).

The spelling of 220907 in words is "two hundred twenty thousand, nine hundred seven".