8340539 has 4 divisors (see below), whose sum is σ = 8351520. Its totient is φ = 8329560.

The previous prime is 8340533. The next prime is 8340593. The reversal of 8340539 is 9350438.

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-8340539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8340533) 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, 4259 + ... + 5900.

It is an arithmetic number, because the mean of its divisors is an integer number (2087880).

Almost surely, 2^8340539 is an apocalyptic number.

8340539 is a deficient number, since it is larger than the sum of its proper divisors (10981).

8340539 is a wasteful number, since it uses less digits than its factorization.

8340539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10980.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 8340539 is about 2887.9991343489. Note that the first 3 decimals coincide. The cubic root of 8340539 is about 202.7984847782.

The spelling of 8340539 in words is "eight million, three hundred forty thousand, five hundred thirty-nine".