228980779 has 8 divisors (see below), whose sum is σ = 233665952. Its totient is φ = 224337600.

The previous prime is 228980737. The next prime is 228980831. The reversal of 228980779 is 977089822.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228980779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228980729) 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, 637 + ... + 21409.

It is an arithmetic number, because the mean of its divisors is an integer number (29208244).

Almost surely, 2^228980779 is an apocalyptic number.

228980779 is a deficient number, since it is larger than the sum of its proper divisors (4685173).

228980779 is a wasteful number, since it uses less digits than its factorization.

228980779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20997.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 228980779 is about 15132.1108573788. The cubic root of 228980779 is about 611.7861996500.

The spelling of 228980779 in words is "two hundred twenty-eight million, nine hundred eighty thousand, seven hundred seventy-nine".