9855679 has 6 divisors (see below), whose sum is σ = 10208120. Its totient is φ = 9515016.

The previous prime is 9855647. The next prime is 9855689. The reversal of 9855679 is 9765589.

It is not a de Polignac number, because 9855679 - 2⁵ = 9855647 is a prime.

It is a Duffinian number.

9855679 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9855689) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5019 + ... + 6700.

Almost surely, 2^9855679 is an apocalyptic number.

9855679 is a deficient number, since it is larger than the sum of its proper divisors (352441).

9855679 is a wasteful number, since it uses less digits than its factorization.

9855679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11777 (or 11748 counting only the distinct ones).

The product of its digits is 680400, while the sum is 49.

The square root of 9855679 is about 3139.3755748556. The cubic root of 9855679 is about 214.4020087689.

The spelling of 9855679 in words is "nine million, eight hundred fifty-five thousand, six hundred seventy-nine".