228099077 has 2 divisors, whose sum is σ = 228099078. Its totient is φ = 228099076.

The previous prime is 228099059. The next prime is 228099101. The reversal of 228099077 is 770990822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126472516 + 101626561 = 11246^2 + 10081^2 .

It is a cyclic number.

It is not a de Polignac number, because 228099077 - 2¹⁸ = 227836933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228090077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114049538 + 114049539.

It is an arithmetic number, because the mean of its divisors is an integer number (114049539).

Almost surely, 2^228099077 is an apocalyptic number.

It is an amenable number.

228099077 is a deficient number, since it is larger than the sum of its proper divisors (1).

228099077 is an equidigital number, since it uses as much as digits as its factorization.

228099077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 228099077 is about 15102.9492815145. The cubic root of 228099077 is about 610.9999517841. Note that the first 4 decimals are identical.

The spelling of 228099077 in words is "two hundred twenty-eight million, ninety-nine thousand, seventy-seven".