228979047 has 16 divisors (see below), whose sum is σ = 337754880. Its totient is φ = 136819200.

The previous prime is 228979043. The next prime is 228979061. The reversal of 228979047 is 740979822.

It is not a de Polignac number, because 228979047 - 2² = 228979043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228978987 and 228979005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228979043) 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 15 ways as a sum of consecutive naturals, for example, 46522 + ... + 51207.

It is an arithmetic number, because the mean of its divisors is an integer number (21109680).

Almost surely, 2^228979047 is an apocalyptic number.

228979047 is a deficient number, since it is larger than the sum of its proper divisors (108775833).

228979047 is a wasteful number, since it uses less digits than its factorization.

228979047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97814.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 228979047 is about 15132.0536279779. The cubic root of 228979047 is about 611.7846571386.

The spelling of 228979047 in words is "two hundred twenty-eight million, nine hundred seventy-nine thousand, forty-seven".