438776113 has 2 divisors, whose sum is σ = 438776114. Its totient is φ = 438776112.

The previous prime is 438776059. The next prime is 438776123. The reversal of 438776113 is 311677834.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 426505104 + 12271009 = 20652^2 + 3503^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-438776113 is a prime.

It is not a weakly prime, because it can be changed into another prime (438776123) 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, 219388056 + 219388057.

It is an arithmetic number, because the mean of its divisors is an integer number (219388057).

Almost surely, 2^438776113 is an apocalyptic number.

It is an amenable number.

438776113 is a deficient number, since it is larger than the sum of its proper divisors (1).

438776113 is an equidigital number, since it uses as much as digits as its factorization.

438776113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 40.

The square root of 438776113 is about 20946.9833866359. The cubic root of 438776113 is about 759.8846275698.

The spelling of 438776113 in words is "four hundred thirty-eight million, seven hundred seventy-six thousand, one hundred thirteen".