220000887 has 8 divisors (see below), whose sum is σ = 325927280. Its totient is φ = 146667240.

The previous prime is 220000871. The next prime is 220000889. The reversal of 220000887 is 788000022.

It is not a de Polignac number, because 220000887 - 2⁴ = 220000871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 8148181 = 220000887 / (2 + 2 + 0 + 0 + 0 + 0 + 8 + 8 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220000887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220000889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4074064 + ... + 4074117.

It is an arithmetic number, because the mean of its divisors is an integer number (40740910).

Almost surely, 2^220000887 is an apocalyptic number.

220000887 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

220000887 is a deficient number, since it is larger than the sum of its proper divisors (105926393).

220000887 is an equidigital number, since it uses as much as digits as its factorization.

220000887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8148190 (or 8148184 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 220000887 is about 14832.4268749251. The cubic root of 220000887 is about 603.6818849895.

The spelling of 220000887 in words is "two hundred twenty million, eight hundred eighty-seven", and thus it is an aban number.