438973313 has 2 divisors, whose sum is σ = 438973314. Its totient is φ = 438973312.

The previous prime is 438973277. The next prime is 438973349. The reversal of 438973313 is 313379834.

It is a balanced prime because it is at equal distance from previous prime (438973277) and next prime (438973349).

It can be written as a sum of positive squares in only one way, i.e., 288592144 + 150381169 = 16988^2 + 12263^2 .

It is a cyclic number.

It is not a de Polignac number, because 438973313 - 2¹⁴ = 438956929 is a prime.

It is not a weakly prime, because it can be changed into another prime (438973363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219486656 + 219486657.

It is an arithmetic number, because the mean of its divisors is an integer number (219486657).

Almost surely, 2^438973313 is an apocalyptic number.

It is an amenable number.

438973313 is a deficient number, since it is larger than the sum of its proper divisors (1).

438973313 is an equidigital number, since it uses as much as digits as its factorization.

438973313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 41.

The square root of 438973313 is about 20951.6899795697. The cubic root of 438973313 is about 759.9984493274.

The spelling of 438973313 in words is "four hundred thirty-eight million, nine hundred seventy-three thousand, three hundred thirteen".