8138479 has 8 divisors (see below), whose sum is σ = 8653680. Its totient is φ = 7632000.

The previous prime is 8138477. The next prime is 8138489. The reversal of 8138479 is 9748318.

8138479 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8138479 - 2¹ = 8138477 is a prime.

8138479 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8138477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202 + ... + 4039.

It is an arithmetic number, because the mean of its divisors is an integer number (1081710).

Almost surely, 2^8138479 is an apocalyptic number.

8138479 is a deficient number, since it is larger than the sum of its proper divisors (515201).

8138479 is a wasteful number, since it uses less digits than its factorization.

8138479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4361.

The product of its digits is 48384, while the sum is 40.

The square root of 8138479 is about 2852.8019559724. The cubic root of 8138479 is about 201.1473964851.

The spelling of 8138479 in words is "eight million, one hundred thirty-eight thousand, four hundred seventy-nine".