423083779 has 2 divisors, whose sum is σ = 423083780. Its totient is φ = 423083778.

The previous prime is 423083719. The next prime is 423083809. The reversal of 423083779 is 977380324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423083779 - 2¹⁵ = 423051011 is a prime.

It is not a weakly prime, because it can be changed into another prime (423083719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211541889 + 211541890.

It is an arithmetic number, because the mean of its divisors is an integer number (211541890).

Almost surely, 2^423083779 is an apocalyptic number.

423083779 is a deficient number, since it is larger than the sum of its proper divisors (1).

423083779 is an equidigital number, since it uses as much as digits as its factorization.

423083779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 423083779 is about 20569.0004375517. Note that the first 3 decimals coincide. The cubic root of 423083779 is about 750.7156304284.

The spelling of 423083779 in words is "four hundred twenty-three million, eighty-three thousand, seven hundred seventy-nine".