220343693 has 2 divisors, whose sum is σ = 220343694. Its totient is φ = 220343692.

The previous prime is 220343671. The next prime is 220343759. The reversal of 220343693 is 396343022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163763209 + 56580484 = 12797^2 + 7522^2 .

It is a cyclic number.

It is not a de Polignac number, because 220343693 - 2¹⁴ = 220327309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220343623) 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, 110171846 + 110171847.

It is an arithmetic number, because the mean of its divisors is an integer number (110171847).

Almost surely, 2^220343693 is an apocalyptic number.

It is an amenable number.

220343693 is a deficient number, since it is larger than the sum of its proper divisors (1).

220343693 is an equidigital number, since it uses as much as digits as its factorization.

220343693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 32.

The square root of 220343693 is about 14843.9783414016. The cubic root of 220343693 is about 603.9952752068.

The spelling of 220343693 in words is "two hundred twenty million, three hundred forty-three thousand, six hundred ninety-three".