229022779 has 2 divisors, whose sum is σ = 229022780. Its totient is φ = 229022778.

The previous prime is 229022771. The next prime is 229022809. The reversal of 229022779 is 977220922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 229022779 - 2³ = 229022771 is a prime.

It is equal to p_12591877 and since 229022779 and 12591877 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (229022771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114511389 + 114511390.

It is an arithmetic number, because the mean of its divisors is an integer number (114511390).

Almost surely, 2^229022779 is an apocalyptic number.

229022779 is a deficient number, since it is larger than the sum of its proper divisors (1).

229022779 is an equidigital number, since it uses as much as digits as its factorization.

229022779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 229022779 is about 15133.4985710509. The cubic root of 229022779 is about 611.8236022792.

The spelling of 229022779 in words is "two hundred twenty-nine million, twenty-two thousand, seven hundred seventy-nine".