444087997 has 2 divisors, whose sum is σ = 444087998. Its totient is φ = 444087996.

The previous prime is 444087977. The next prime is 444088027. The reversal of 444087997 is 799780444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 341288676 + 102799321 = 18474^2 + 10139^2 .

It is a cyclic number.

It is not a de Polignac number, because 444087997 - 2²⁷ = 309870269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444087907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222043998 + 222043999.

It is an arithmetic number, because the mean of its divisors is an integer number (222043999).

Almost surely, 2^444087997 is an apocalyptic number.

It is an amenable number.

444087997 is a deficient number, since it is larger than the sum of its proper divisors (1).

444087997 is an equidigital number, since it uses as much as digits as its factorization.

444087997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The square root of 444087997 is about 21073.3954786598. The cubic root of 444087997 is about 762.9387585709.

The spelling of 444087997 in words is "four hundred forty-four million, eighty-seven thousand, nine hundred ninety-seven".