228576977 has 2 divisors, whose sum is σ = 228576978. Its totient is φ = 228576976.

The previous prime is 228576947. The next prime is 228576983. The reversal of 228576977 is 779675822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228493456 + 83521 = 15116^2 + 289^2 .

It is a cyclic number.

It is not a de Polignac number, because 228576977 - 2⁸ = 228576721 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (228576947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114288488 + 114288489.

It is an arithmetic number, because the mean of its divisors is an integer number (114288489).

Almost surely, 2^228576977 is an apocalyptic number.

It is an amenable number.

228576977 is a deficient number, since it is larger than the sum of its proper divisors (1).

228576977 is an equidigital number, since it uses as much as digits as its factorization.

228576977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2963520, while the sum is 53.

The square root of 228576977 is about 15118.7624162826. The cubic root of 228576977 is about 611.4263647167.

The spelling of 228576977 in words is "two hundred twenty-eight million, five hundred seventy-six thousand, nine hundred seventy-seven".