9041987 has 4 divisors (see below), whose sum is σ = 9333696. Its totient is φ = 8750280.

The previous prime is 9041971. The next prime is 9041993. The reversal of 9041987 is 7891409.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7891409 = 1229 ⋅6421.

It is a cyclic number.

It is not a de Polignac number, because 9041987 - 2⁴ = 9041971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9041987.

It is not an unprimeable number, because it can be changed into a prime (9041917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145808 + ... + 145869.

It is an arithmetic number, because the mean of its divisors is an integer number (2333424).

Almost surely, 2^9041987 is an apocalyptic number.

9041987 is a deficient number, since it is larger than the sum of its proper divisors (291709).

9041987 is a wasteful number, since it uses less digits than its factorization.

9041987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291708.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 9041987 is about 3006.9896907040. The cubic root of 9041987 is about 208.3313490300.

The spelling of 9041987 in words is "nine million, forty-one thousand, nine hundred eighty-seven".