423878713 has 2 divisors, whose sum is σ = 423878714. Its totient is φ = 423878712.

The previous prime is 423878701. The next prime is 423878723. The reversal of 423878713 is 317878324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 391525369 + 32353344 = 19787^2 + 5688^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423878713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 423878713.

It is not a weakly prime, because it can be changed into another prime (423878723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211939356 + 211939357.

It is an arithmetic number, because the mean of its divisors is an integer number (211939357).

Almost surely, 2^423878713 is an apocalyptic number.

It is an amenable number.

423878713 is a deficient number, since it is larger than the sum of its proper divisors (1).

423878713 is an equidigital number, since it uses as much as digits as its factorization.

423878713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225792, while the sum is 43.

The square root of 423878713 is about 20588.3149626190. The cubic root of 423878713 is about 751.1855105803.

The spelling of 423878713 in words is "four hundred twenty-three million, eight hundred seventy-eight thousand, seven hundred thirteen".