439376401 has 2 divisors, whose sum is σ = 439376402. Its totient is φ = 439376400.

The previous prime is 439376323. The next prime is 439376411. The reversal of 439376401 is 104673934.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 431808400 + 7568001 = 20780^2 + 2751^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-439376401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (439376411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219688200 + 219688201.

It is an arithmetic number, because the mean of its divisors is an integer number (219688201).

Almost surely, 2^439376401 is an apocalyptic number.

It is an amenable number.

439376401 is a deficient number, since it is larger than the sum of its proper divisors (1).

439376401 is an equidigital number, since it uses as much as digits as its factorization.

439376401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 439376401 is about 20961.3072349985. The cubic root of 439376401 is about 760.2310014561.

The spelling of 439376401 in words is "four hundred thirty-nine million, three hundred seventy-six thousand, four hundred one".