4400443997 has 2 divisors, whose sum is σ = 4400443998. Its totient is φ = 4400443996.

The previous prime is 4400443987. The next prime is 4400444039. The reversal of 4400443997 is 7993440044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2204678116 + 2195765881 = 46954^2 + 46859^2 .

It is a cyclic number.

It is not a de Polignac number, because 4400443997 - 2¹⁰ = 4400442973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4400443937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2200221998 + 2200221999.

It is an arithmetic number, because the mean of its divisors is an integer number (2200221999).

Almost surely, 2^4400443997 is an apocalyptic number.

It is an amenable number.

4400443997 is a deficient number, since it is larger than the sum of its proper divisors (1).

4400443997 is an equidigital number, since it uses as much as digits as its factorization.

4400443997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 4400443997 is about 66335.8424759948. The cubic root of 4400443997 is about 1638.6976569514.

The spelling of 4400443997 in words is "four billion, four hundred million, four hundred forty-three thousand, nine hundred ninety-seven".