9378987 has 8 divisors (see below), whose sum is σ = 12519936. Its totient is φ = 6245352.

The previous prime is 9378983. The next prime is 9379001. The reversal of 9378987 is 7898739.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9378987 - 2² = 9378983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9378983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2958 + ... + 5244.

It is an arithmetic number, because the mean of its divisors is an integer number (1564992).

Almost surely, 2^9378987 is an apocalyptic number.

9378987 is a deficient number, since it is larger than the sum of its proper divisors (3140949).

9378987 is a wasteful number, since it uses less digits than its factorization.

9378987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3657.

The product of its digits is 762048, while the sum is 51.

The square root of 9378987 is about 3062.5131836451. The cubic root of 9378987 is about 210.8880533427. Note that the first 3 decimals are identical.

The spelling of 9378987 in words is "nine million, three hundred seventy-eight thousand, nine hundred eighty-seven".