9877009 has 4 divisors (see below), whose sum is σ = 9884160. Its totient is φ = 9869860.

The previous prime is 9877001. The next prime is 9877033. The reversal of 9877009 is 9007789.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 9877009 - 2³ = 9877001 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9877001) 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, 769 + ... + 4510.

It is an arithmetic number, because the mean of its divisors is an integer number (2471040).

Almost surely, 2^9877009 is an apocalyptic number.

It is an amenable number.

9877009 is a deficient number, since it is larger than the sum of its proper divisors (7151).

9877009 is a wasteful number, since it uses less digits than its factorization.

9877009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7150.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 9877009 is about 3142.7709111547. The cubic root of 9877009 is about 214.5565693917.

The spelling of 9877009 in words is "nine million, eight hundred seventy-seven thousand, nine".