4444404397 has 2 divisors, whose sum is σ = 4444404398. Its totient is φ = 4444404396.

The previous prime is 4444404383. The next prime is 4444404407. The reversal of 4444404397 is 7934044444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4444355556 + 48841 = 66666^2 + 221^2 .

It is a cyclic number.

It is not a de Polignac number, because 4444404397 - 2⁷ = 4444404269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4444404697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222202198 + 2222202199.

It is an arithmetic number, because the mean of its divisors is an integer number (2222202199).

Almost surely, 2^4444404397 is an apocalyptic number.

It is an amenable number.

4444404397 is a deficient number, since it is larger than the sum of its proper divisors (1).

4444404397 is an equidigital number, since it uses as much as digits as its factorization.

4444404397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 43.

The square root of 4444404397 is about 66666.3663101567. The cubic root of 4444404397 is about 1644.1364445976.

The spelling of 4444404397 in words is "four billion, four hundred forty-four million, four hundred four thousand, three hundred ninety-seven".