9404987 has 2 divisors, whose sum is σ = 9404988. Its totient is φ = 9404986.

The previous prime is 9404971. The next prime is 9405017. The reversal of 9404987 is 7894049.

9404987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9404987 - 2⁴ = 9404971 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (9404947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4702493 + 4702494.

It is an arithmetic number, because the mean of its divisors is an integer number (4702494).

Almost surely, 2^9404987 is an apocalyptic number.

9404987 is a deficient number, since it is larger than the sum of its proper divisors (1).

9404987 is an equidigital number, since it uses as much as digits as its factorization.

9404987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 9404987 is about 3066.7551255358. The cubic root of 9404987 is about 211.0827449627.

The spelling of 9404987 in words is "nine million, four hundred four thousand, nine hundred eighty-seven".