228977099 has 4 divisors (see below), whose sum is σ = 246590736. Its totient is φ = 211363464.

The previous prime is 228977093. The next prime is 228977141. The reversal of 228977099 is 990779822.

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

It is a de Polignac number, because none of the positive numbers 2^k-228977099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228977099.

It is not an unprimeable number, because it can be changed into a prime (228977093) 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, 8806799 + ... + 8806824.

It is an arithmetic number, because the mean of its divisors is an integer number (61647684).

Almost surely, 2^228977099 is an apocalyptic number.

228977099 is a deficient number, since it is larger than the sum of its proper divisors (17613637).

228977099 is a wasteful number, since it uses less digits than its factorization.

228977099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17613636.

The product of its (nonzero) digits is 1143072, while the sum is 53.

The square root of 228977099 is about 15131.9892611646. The cubic root of 228977099 is about 611.7829222493.

The spelling of 228977099 in words is "two hundred twenty-eight million, nine hundred seventy-seven thousand, ninety-nine".