228662589 has 4 divisors (see below), whose sum is σ = 304883456. Its totient is φ = 152441724.

The previous prime is 228662569. The next prime is 228662591. The reversal of 228662589 is 985266822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 228662589 - 2⁵ = 228662557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228662509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38110429 + ... + 38110434.

It is an arithmetic number, because the mean of its divisors is an integer number (76220864).

Almost surely, 2^228662589 is an apocalyptic number.

It is an amenable number.

228662589 is a deficient number, since it is larger than the sum of its proper divisors (76220867).

228662589 is an equidigital number, since it uses as much as digits as its factorization.

228662589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76220866.

The product of its digits is 829440, while the sum is 48.

The square root of 228662589 is about 15121.5934676211. The cubic root of 228662589 is about 611.5026904265.

The spelling of 228662589 in words is "two hundred twenty-eight million, six hundred sixty-two thousand, five hundred eighty-nine".