9445987 has 2 divisors, whose sum is σ = 9445988. Its totient is φ = 9445986.

The previous prime is 9445937. The next prime is 9445991. The reversal of 9445987 is 7895449.

It is a strong prime.

It is an emirp because it is prime and its reverse (7895449) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9445987 - 2⁷ = 9445859 is a prime.

It is not a weakly prime, because it can be changed into another prime (9445937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4722993 + 4722994.

It is an arithmetic number, because the mean of its divisors is an integer number (4722994).

Almost surely, 2^9445987 is an apocalyptic number.

9445987 is a deficient number, since it is larger than the sum of its proper divisors (1).

9445987 is an equidigital number, since it uses as much as digits as its factorization.

9445987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 46.

The square root of 9445987 is about 3073.4324459796. The cubic root of 9445987 is about 211.3890309419.

The spelling of 9445987 in words is "nine million, four hundred forty-five thousand, nine hundred eighty-seven".