228812699 has 4 divisors (see below), whose sum is σ = 234996864. Its totient is φ = 222628536.

The previous prime is 228812693. The next prime is 228812729. The reversal of 228812699 is 996218822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 228812699 - 2¹² = 228808603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228812693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3092027 + ... + 3092100.

It is an arithmetic number, because the mean of its divisors is an integer number (58749216).

Almost surely, 2^228812699 is an apocalyptic number.

228812699 is a deficient number, since it is larger than the sum of its proper divisors (6184165).

228812699 is an equidigital number, since it uses as much as digits as its factorization.

228812699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6184164.

The product of its digits is 248832, while the sum is 47.

The square root of 228812699 is about 15126.5560852429. The cubic root of 228812699 is about 611.6364720976.

The spelling of 228812699 in words is "two hundred twenty-eight million, eight hundred twelve thousand, six hundred ninety-nine".