230999779 has 2 divisors, whose sum is σ = 230999780. Its totient is φ = 230999778.

The previous prime is 230999773. The next prime is 230999789. The reversal of 230999779 is 977999032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 230999779 - 2³ = 230999771 is a prime.

It is not a weakly prime, because it can be changed into another prime (230999771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115499889 + 115499890.

It is an arithmetic number, because the mean of its divisors is an integer number (115499890).

Almost surely, 2^230999779 is an apocalyptic number.

230999779 is a deficient number, since it is larger than the sum of its proper divisors (1).

230999779 is an equidigital number, since it uses as much as digits as its factorization.

230999779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1928934, while the sum is 55.

The square root of 230999779 is about 15198.6768832027. The cubic root of 230999779 is about 613.5790482937.

The spelling of 230999779 in words is "two hundred thirty million, nine hundred ninety-nine thousand, seven hundred seventy-nine".