228749659 has 4 divisors (see below), whose sum is σ = 230395480. Its totient is φ = 227103840.

The previous prime is 228749657. The next prime is 228749681. The reversal of 228749659 is 956947822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 956947822 = 2 ⋅478473911.

It is a cyclic number.

It is not a de Polignac number, because 228749659 - 2¹ = 228749657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228749657) 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, 822702 + ... + 822979.

It is an arithmetic number, because the mean of its divisors is an integer number (57598870).

Almost surely, 2^228749659 is an apocalyptic number.

228749659 is a deficient number, since it is larger than the sum of its proper divisors (1645821).

228749659 is a wasteful number, since it uses less digits than its factorization.

228749659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645820.

The product of its digits is 2177280, while the sum is 52.

The square root of 228749659 is about 15124.4721891377. The cubic root of 228749659 is about 611.5802964499.

The spelling of 228749659 in words is "two hundred twenty-eight million, seven hundred forty-nine thousand, six hundred fifty-nine".