9408479839 has 4 divisors (see below), whose sum is σ = 10263796200. Its totient is φ = 8553163480.

The previous prime is 9408479809. The next prime is 9408479909. The reversal of 9408479839 is 9389748049.

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

It is a cyclic number.

It is not a de Polignac number, because 9408479839 - 2¹⁹ = 9407955551 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 (9408479809) 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, 427658164 + ... + 427658185.

It is an arithmetic number, because the mean of its divisors is an integer number (2565949050).

Almost surely, 2^9408479839 is an apocalyptic number.

9408479839 is a deficient number, since it is larger than the sum of its proper divisors (855316361).

9408479839 is a wasteful number, since it uses less digits than its factorization.

9408479839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855316360.

The product of its (nonzero) digits is 15676416, while the sum is 61.

The square root of 9408479839 is about 96997.3187206739. The cubic root of 9408479839 is about 2111.0887247684.

The spelling of 9408479839 in words is "nine billion, four hundred eight million, four hundred seventy-nine thousand, eight hundred thirty-nine".