220353887 has 16 divisors (see below), whose sum is σ = 255615360. Its totient is φ = 188207712.

The previous prime is 220353799. The next prime is 220353893. The reversal of 220353887 is 788353022.

It is a cyclic number.

It is not a de Polignac number, because 220353887 - 2¹² = 220349791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220353887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220353187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248 + ... + 20994.

It is an arithmetic number, because the mean of its divisors is an integer number (15975960).

Almost surely, 2^220353887 is an apocalyptic number.

220353887 is a deficient number, since it is larger than the sum of its proper divisors (35261473).

220353887 is a wasteful number, since it uses less digits than its factorization.

220353887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20822.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 220353887 is about 14844.3217089903. The cubic root of 220353887 is about 604.0045894934.

The spelling of 220353887 in words is "two hundred twenty million, three hundred fifty-three thousand, eight hundred eighty-seven".