9778873 has 8 divisors (see below), whose sum is σ = 10615808. Its totient is φ = 8954064.

The previous prime is 9778843. The next prime is 9778889. The reversal of 9778873 is 3788779.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9778873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9778843) 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, 1311 + ... + 4612.

It is an arithmetic number, because the mean of its divisors is an integer number (1326976).

Almost surely, 2^9778873 is an apocalyptic number.

It is an amenable number.

9778873 is a deficient number, since it is larger than the sum of its proper divisors (836935).

9778873 is a wasteful number, since it uses less digits than its factorization.

9778873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6063.

The product of its digits is 592704, while the sum is 49.

The square root of 9778873 is about 3127.1189616003. The cubic root of 9778873 is about 213.8436057082.

The spelling of 9778873 in words is "nine million, seven hundred seventy-eight thousand, eight hundred seventy-three".