9861379 has 16 divisors (see below), whose sum is σ = 11243520. Its totient is φ = 8639400.

The previous prime is 9861373. The next prime is 9861389. The reversal of 9861379 is 9731689.

It is a de Polignac number, because none of the positive numbers 2^k-9861379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9861373) 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 15 ways as a sum of consecutive naturals, for example, 41142 + ... + 41380.

It is an arithmetic number, because the mean of its divisors is an integer number (702720).

Almost surely, 2^9861379 is an apocalyptic number.

9861379 is a deficient number, since it is larger than the sum of its proper divisors (1382141).

9861379 is a wasteful number, since it uses less digits than its factorization.

9861379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 281 counting only the distinct ones).

The product of its digits is 81648, while the sum is 43.

The square root of 9861379 is about 3140.2832674776. The cubic root of 9861379 is about 214.4433337054.

The spelling of 9861379 in words is "nine million, eight hundred sixty-one thousand, three hundred seventy-nine".