228981679 has 8 divisors (see below), whose sum is σ = 238070448. Its totient is φ = 220059840.

The previous prime is 228981667. The next prime is 228981689. The reversal of 228981679 is 976189822.

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 228981679 - 2⁵ = 228981647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228981659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38932 + ... + 44425.

It is an arithmetic number, because the mean of its divisors is an integer number (29758806).

Almost surely, 2^228981679 is an apocalyptic number.

228981679 is a deficient number, since it is larger than the sum of its proper divisors (9088769).

228981679 is an equidigital number, since it uses as much as digits as its factorization.

228981679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83465.

The product of its digits is 870912, while the sum is 52.

The square root of 228981679 is about 15132.1405954346. The cubic root of 228981679 is about 611.7870011829.

The spelling of 228981679 in words is "two hundred twenty-eight million, nine hundred eighty-one thousand, six hundred seventy-nine".