9878773 has 2 divisors, whose sum is σ = 9878774. Its totient is φ = 9878772.

The previous prime is 9878749. The next prime is 9878797. The reversal of 9878773 is 3778789.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (9878749) and next prime (9878797).

It can be written as a sum of positive squares in only one way, i.e., 9878449 + 324 = 3143^2 + 18^2 .

It is a cyclic number.

It is not a de Polignac number, because 9878773 - 2¹⁷ = 9747701 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9879773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4939386 + 4939387.

It is an arithmetic number, because the mean of its divisors is an integer number (4939387).

Almost surely, 2^9878773 is an apocalyptic number.

It is an amenable number.

9878773 is a deficient number, since it is larger than the sum of its proper divisors (1).

9878773 is an equidigital number, since it uses as much as digits as its factorization.

9878773 is an odious number, because the sum of its binary digits is odd.

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

The square root of 9878773 is about 3143.0515426890. The cubic root of 9878773 is about 214.5693416543.

The spelling of 9878773 in words is "nine million, eight hundred seventy-eight thousand, seven hundred seventy-three".