8393474879 has 4 divisors (see below), whose sum is σ = 8407079184. Its totient is φ = 8379870576.

The previous prime is 8393474833. The next prime is 8393474891. The reversal of 8393474879 is 9784743938.

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 8393474879 - 2²⁰ = 8392426303 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 (8393474899) 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, 6801227 + ... + 6802460.

It is an arithmetic number, because the mean of its divisors is an integer number (2101769796).

Almost surely, 2^8393474879 is an apocalyptic number.

8393474879 is a deficient number, since it is larger than the sum of its proper divisors (13604305).

8393474879 is a wasteful number, since it uses less digits than its factorization.

8393474879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13604304.

The product of its digits is 36578304, while the sum is 62.

The square root of 8393474879 is about 91615.9095299501. The cubic root of 8393474879 is about 2032.2662194053.

The spelling of 8393474879 in words is "eight billion, three hundred ninety-three million, four hundred seventy-four thousand, eight hundred seventy-nine".