228107887 has 24 divisors (see below), whose sum is σ = 287854560. Its totient is φ = 179504640.

The previous prime is 228107861. The next prime is 228107899. The reversal of 228107887 is 788701822.

It is a de Polignac number, because none of the positive numbers 2^k-228107887 is a prime.

It is a super-2 number, since 2×228107887² = 104066416223209538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228107837) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30814 + ... + 37492.

It is an arithmetic number, because the mean of its divisors is an integer number (11993940).

Almost surely, 2^228107887 is an apocalyptic number.

228107887 is a deficient number, since it is larger than the sum of its proper divisors (59746673).

228107887 is a wasteful number, since it uses less digits than its factorization.

228107887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6751 (or 6744 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 43.

The square root of 228107887 is about 15103.2409435856. The cubic root of 228107887 is about 611.0078180154.

The spelling of 228107887 in words is "two hundred twenty-eight million, one hundred seven thousand, eight hundred eighty-seven".