228199297 has 2 divisors, whose sum is σ = 228199298. Its totient is φ = 228199296.

The previous prime is 228199267. The next prime is 228199327. The reversal of 228199297 is 792991822.

It is a balanced prime because it is at equal distance from previous prime (228199267) and next prime (228199327).

It can be written as a sum of positive squares in only one way, i.e., 226171521 + 2027776 = 15039^2 + 1424^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228199297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228199297.

It is not a weakly prime, because it can be changed into another prime (228199217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114099648 + 114099649.

It is an arithmetic number, because the mean of its divisors is an integer number (114099649).

Almost surely, 2^228199297 is an apocalyptic number.

It is an amenable number.

228199297 is a deficient number, since it is larger than the sum of its proper divisors (1).

228199297 is an equidigital number, since it uses as much as digits as its factorization.

228199297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 49.

The square root of 228199297 is about 15106.2668121545. The cubic root of 228199297 is about 611.0894237948.

The spelling of 228199297 in words is "two hundred twenty-eight million, one hundred ninety-nine thousand, two hundred ninety-seven".