228977 has 6 divisors (see below), whose sum is σ = 266418. Its totient is φ = 196224.

The previous prime is 228961. The next prime is 228983. The reversal of 228977 is 779822.

It can be written as a sum of positive squares in only one way, i.e., 226576 + 2401 = 476^2 + 49^2 .

It is not a de Polignac number, because 228977 - 2⁴ = 228961 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 228977.

It is not an unprimeable number, because it can be changed into a prime (228077) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2288 + ... + 2385.

It is an arithmetic number, because the mean of its divisors is an integer number (44403).

2²²⁸⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

228977 is a deficient number, since it is larger than the sum of its proper divisors (37441).

228977 is an equidigital number, since it uses as much as digits as its factorization.

228977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4687 (or 4680 counting only the distinct ones).

The product of its digits is 14112, while the sum is 35.

The square root of 228977 is about 478.5154125000. The cubic root of 228977 is about 61.1782834080.

The spelling of 228977 in words is "two hundred twenty-eight thousand, nine hundred seventy-seven".