9879445 has 12 divisors (see below), whose sum is σ = 12069540. Its totient is φ = 7762304.

The previous prime is 9879439. The next prime is 9879469. The reversal of 9879445 is 5449789.

It can be written as a sum of positive squares in 6 ways, for example, as 3837681 + 6041764 = 1959^2 + 2458^2 .

It is not a de Polignac number, because 9879445 - 2⁵ = 9879413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9879395 and 9879404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66231 + ... + 66379.

It is an arithmetic number, because the mean of its divisors is an integer number (1005795).

Almost surely, 2^9879445 is an apocalyptic number.

It is an amenable number.

9879445 is a deficient number, since it is larger than the sum of its proper divisors (2190095).

9879445 is an equidigital number, since it uses as much as digits as its factorization.

9879445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 243 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The square root of 9879445 is about 3143.1584433496. The cubic root of 9879445 is about 214.5742068782.

The spelling of 9879445 in words is "nine million, eight hundred seventy-nine thousand, four hundred forty-five".