228906829 has 2 divisors, whose sum is σ = 228906830. Its totient is φ = 228906828.

The previous prime is 228906809. The next prime is 228906857. The reversal of 228906829 is 928609822.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212284900 + 16621929 = 14570^2 + 4077^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228906829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228906809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114453414 + 114453415.

It is an arithmetic number, because the mean of its divisors is an integer number (114453415).

Almost surely, 2^228906829 is an apocalyptic number.

It is an amenable number.

228906829 is a deficient number, since it is larger than the sum of its proper divisors (1).

228906829 is an equidigital number, since it uses as much as digits as its factorization.

228906829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 228906829 is about 15129.6671807413. The cubic root of 228906829 is about 611.7203331890.

The spelling of 228906829 in words is "two hundred twenty-eight million, nine hundred six thousand, eight hundred twenty-nine".