220475887 has 2 divisors, whose sum is σ = 220475888. Its totient is φ = 220475886.

The previous prime is 220475869. The next prime is 220475903. The reversal of 220475887 is 788574022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220475887 - 2¹¹ = 220473839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220475587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110237943 + 110237944.

It is an arithmetic number, because the mean of its divisors is an integer number (110237944).

Almost surely, 2^220475887 is an apocalyptic number.

220475887 is a deficient number, since it is larger than the sum of its proper divisors (1).

220475887 is an equidigital number, since it uses as much as digits as its factorization.

220475887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 250880, while the sum is 43.

The square root of 220475887 is about 14848.4304557755. The cubic root of 220475887 is about 604.1160389528.

The spelling of 220475887 in words is "two hundred twenty million, four hundred seventy-five thousand, eight hundred eighty-seven".