228918797 has 2 divisors, whose sum is σ = 228918798. Its totient is φ = 228918796.

The previous prime is 228918791. The next prime is 228918803. The reversal of 228918797 is 797819822.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (228918791) and next prime (228918803).

It can be written as a sum of positive squares in only one way, i.e., 214886281 + 14032516 = 14659^2 + 3746^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228918797 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228918791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114459398 + 114459399.

It is an arithmetic number, because the mean of its divisors is an integer number (114459399).

Almost surely, 2^228918797 is an apocalyptic number.

It is an amenable number.

228918797 is a deficient number, since it is larger than the sum of its proper divisors (1).

228918797 is an equidigital number, since it uses as much as digits as its factorization.

228918797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 53.

The square root of 228918797 is about 15130.0626898900. The cubic root of 228918797 is about 611.7309939185.

The spelling of 228918797 in words is "two hundred twenty-eight million, nine hundred eighteen thousand, seven hundred ninety-seven".