9840479 has 4 divisors (see below), whose sum is σ = 10735080. Its totient is φ = 8945880.

The previous prime is 9840449. The next prime is 9840487. The reversal of 9840479 is 9740489.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9840479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9840449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447284 + ... + 447305.

It is an arithmetic number, because the mean of its divisors is an integer number (2683770).

Almost surely, 2^9840479 is an apocalyptic number.

9840479 is a deficient number, since it is larger than the sum of its proper divisors (894601).

9840479 is a wasteful number, since it uses less digits than its factorization.

9840479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894600.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 9840479 is about 3136.9537771539. The cubic root of 9840479 is about 214.2917309845.

The spelling of 9840479 in words is "nine million, eight hundred forty thousand, four hundred seventy-nine".