228979839 has 8 divisors (see below), whose sum is σ = 333061632. Its totient is φ = 138775640.

The previous prime is 228979831. The next prime is 228979847. The reversal of 228979839 is 938979822.

It is an interprime number because it is at equal distance from previous prime (228979831) and next prime (228979847).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228979839 - 2³ = 228979831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228979831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3469359 + ... + 3469424.

It is an arithmetic number, because the mean of its divisors is an integer number (41632704).

Almost surely, 2^228979839 is an apocalyptic number.

228979839 is a deficient number, since it is larger than the sum of its proper divisors (104081793).

228979839 is a wasteful number, since it uses less digits than its factorization.

228979839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6938797.

The product of its digits is 3919104, while the sum is 57.

The square root of 228979839 is about 15132.0797975691. The cubic root of 228979839 is about 611.7853624912.

It can be divided in two parts, 2289 and 79839, that added together give a palindrome (82128).

The spelling of 228979839 in words is "two hundred twenty-eight million, nine hundred seventy-nine thousand, eight hundred thirty-nine".