438246673 has 2 divisors, whose sum is σ = 438246674. Its totient is φ = 438246672.

The previous prime is 438246649. The next prime is 438246707. The reversal of 438246673 is 376642834.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243141649 + 195105024 = 15593^2 + 13968^2 .

It is a cyclic number.

It is not a de Polignac number, because 438246673 - 2⁹ = 438246161 is a prime.

It is not a weakly prime, because it can be changed into another prime (438246643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219123336 + 219123337.

It is an arithmetic number, because the mean of its divisors is an integer number (219123337).

Almost surely, 2^438246673 is an apocalyptic number.

It is an amenable number.

438246673 is a deficient number, since it is larger than the sum of its proper divisors (1).

438246673 is an equidigital number, since it uses as much as digits as its factorization.

438246673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 43.

The square root of 438246673 is about 20934.3419528773. The cubic root of 438246673 is about 759.5788716059.

The spelling of 438246673 in words is "four hundred thirty-eight million, two hundred forty-six thousand, six hundred seventy-three".