9879257 has 2 divisors, whose sum is σ = 9879258. Its totient is φ = 9879256.

The previous prime is 9879239. The next prime is 9879263. The reversal of 9879257 is 7529789.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7070281 + 2808976 = 2659^2 + 1676^2 .

It is a cyclic number.

It is not a de Polignac number, because 9879257 - 2²⁰ = 8830681 is a prime.

It is not a weakly prime, because it can be changed into another prime (9879277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4939628 + 4939629.

It is an arithmetic number, because the mean of its divisors is an integer number (4939629).

Almost surely, 2^9879257 is an apocalyptic number.

It is an amenable number.

9879257 is a deficient number, since it is larger than the sum of its proper divisors (1).

9879257 is an equidigital number, since it uses as much as digits as its factorization.

9879257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 47.

The square root of 9879257 is about 3143.1285369835. The cubic root of 9879257 is about 214.5728457961.

The spelling of 9879257 in words is "nine million, eight hundred seventy-nine thousand, two hundred fifty-seven".