228562887 has 16 divisors (see below), whose sum is σ = 348986880. Its totient is φ = 130344672.

The previous prime is 228562883. The next prime is 228562903. The reversal of 228562887 is 788265822.

It is not a de Polignac number, because 228562887 - 2² = 228562883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228562883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3 + ... + 21380.

It is an arithmetic number, because the mean of its divisors is an integer number (21811680).

Almost surely, 2^228562887 is an apocalyptic number.

228562887 is a deficient number, since it is larger than the sum of its proper divisors (120423993).

228562887 is a wasteful number, since it uses less digits than its factorization.

228562887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21902.

The product of its digits is 860160, while the sum is 48.

The square root of 228562887 is about 15118.2964318074. The cubic root of 228562887 is about 611.4138012255.

The spelling of 228562887 in words is "two hundred twenty-eight million, five hundred sixty-two thousand, eight hundred eighty-seven".