228162487 has 8 divisors (see below), whose sum is σ = 266305536. Its totient is φ = 191406552.

The previous prime is 228162439. The next prime is 228162521. The reversal of 228162487 is 784261822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228162487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228162437) 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 7 ways as a sum of consecutive naturals, for example, 346423 + ... + 347080.

It is an arithmetic number, because the mean of its divisors is an integer number (33288192).

Almost surely, 2^228162487 is an apocalyptic number.

228162487 is a deficient number, since it is larger than the sum of its proper divisors (38143049).

228162487 is an equidigital number, since it uses as much as digits as its factorization.

228162487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693557.

The product of its digits is 86016, while the sum is 40.

The square root of 228162487 is about 15105.0483944938. The cubic root of 228162487 is about 611.0565644892.

The spelling of 228162487 in words is "two hundred twenty-eight million, one hundred sixty-two thousand, four hundred eighty-seven".