444407987 has 2 divisors, whose sum is σ = 444407988. Its totient is φ = 444407986.

The previous prime is 444407969. The next prime is 444408011. The reversal of 444407987 is 789704444.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 444407987 - 2⁶ = 444407923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (444407917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222203993 + 222203994.

It is an arithmetic number, because the mean of its divisors is an integer number (222203994).

Almost surely, 2^444407987 is an apocalyptic number.

444407987 is a deficient number, since it is larger than the sum of its proper divisors (1).

444407987 is an equidigital number, since it uses as much as digits as its factorization.

444407987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 903168, while the sum is 47.

The square root of 444407987 is about 21080.9863858407. The cubic root of 444407987 is about 763.1219611204.

The spelling of 444407987 in words is "four hundred forty-four million, four hundred seven thousand, nine hundred eighty-seven".