987444347 has 2 divisors, whose sum is σ = 987444348. Its totient is φ = 987444346.

The previous prime is 987444331. The next prime is 987444391. The reversal of 987444347 is 743444789.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 987444347 - 2⁴ = 987444331 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 987444295 and 987444304.

It is not a weakly prime, because it can be changed into another prime (987444047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493722173 + 493722174.

It is an arithmetic number, because the mean of its divisors is an integer number (493722174).

Almost surely, 2^987444347 is an apocalyptic number.

987444347 is a deficient number, since it is larger than the sum of its proper divisors (1).

987444347 is an equidigital number, since it uses as much as digits as its factorization.

987444347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2709504, while the sum is 50.

The square root of 987444347 is about 31423.6272094741. The cubic root of 987444347 is about 995.7971430734.

The spelling of 987444347 in words is "nine hundred eighty-seven million, four hundred forty-four thousand, three hundred forty-seven".